Question

infants will often reach for things by _________ before they learn to reach with their arms.
a. raising their head and scooting
b. crawling
c. twisting their entire body
d. grasping with their hands

please select the best answer from the choices provided

a
b
c
d

Explanation:

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<reasoning>

Analyze motor development principles

According to the proximodistal trend of motor development, control radiates outward from the center of the body to the extremities. However, in early reaching and grasping, infants often use gross motor movements involving their whole torso or larger muscle groups before they develop the fine-tuned coordination to reach out precisely with their arms. Specifically, very young infants will often reach for objects by twisting their entire body toward the object before they gain the control to reach directly using just their arms.

Evaluate the given options

• A: "raising their head and scooting" is related to locomotion rather than reaching.
• B: "crawling" is a later locomotor milestone, not a precursor to arm reaching.
• C: "twisting their entire body" represents the early, gross-motor stage of reaching behavior before arm-specific control is established.
• D: "grasping with their hands" requires arm extension first, so they cannot reach by grasping before learning to reach with their arms.

Select the correct option

Option C is the most accurate description of early infant reaching behavior prior to arm control.
</reasoning>

<answer>
<mcq-option>A. raising their head and scooting</mcq-option>
<mcq-option>B. crawling</mcq-option>
<mcq-correct>C. twisting their entire body</mcq-correct>
<mcq-option>D. grasping with their hands</mcq-option>
</answer>

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"question_type": "Multiple Choice",
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"Natural Science",
"Biology",
"Infant Motor Development"
]
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Answer:

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<reasoning>

Analyze motor development principles

According to the proximodistal trend of motor development, control radiates outward from the center of the body to the extremities. However, in early reaching and grasping, infants often use gross motor movements involving their whole torso or larger muscle groups before they develop the fine-tuned coordination to reach out precisely with their arms. Specifically, very young infants will often reach for objects by twisting their entire body toward the object before they gain the control to reach directly using just their arms.

Evaluate the given options

• A: "raising their head and scooting" is related to locomotion rather than reaching.
• B: "crawling" is a later locomotor milestone, not a precursor to arm reaching.
• C: "twisting their entire body" represents the early, gross-motor stage of reaching behavior before arm-specific control is established.
• D: "grasping with their hands" requires arm extension first, so they cannot reach by grasping before learning to reach with their arms.

Select the correct option

Option C is the most accurate description of early infant reaching behavior prior to arm control.
</reasoning>

<answer>
<mcq-option>A. raising their head and scooting</mcq-option>
<mcq-option>B. crawling</mcq-option>
<mcq-correct>C. twisting their entire body</mcq-correct>
<mcq-option>D. grasping with their hands</mcq-option>
</answer>

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"question_type": "Multiple Choice",
"knowledge_point": [
"Natural Science",
"Biology",
"Infant Motor Development"
]
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