Question

1. which sentence has an infinitive phrase that functions as the subject?

after the rain, water travels from the ground to the roots of a plant.

to convert sunlight and energy into food is the end result of photosynthesis.

plants are adapted to take in moisture from the ground.

Explanation:

1. Analyze the first option: "After the rain, water travels from the ground to the roots of a plant." The subject here is "water", and there is no infinitive phrase acting as the subject.
2. Analyze the second option: "To convert sunlight and energy into food is the end result of photosynthesis." The phrase "To convert sunlight and energy into food" is an infinitive phrase, and it is functioning as the subject of the sentence (the main action or thing being described as the end result of photosynthesis).
3. Analyze the third option: "Plants are adapted to take in moisture from the ground." The infinitive phrase "to take in moisture from the ground" is functioning as an adverbial (explaining why or how plants are adapted), not as the subject. The subject here is "Plants".

Answer:

B. To convert sunlight and energy into food is the end result of photosynthesis.