Question

the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer. which of the following best replaces the word integral in paragraph 1? attractive obvious undivided essential reading passage cell phones: classroom technology of the future 1 the cell phone. no longer a device just to make telephone calls, cell phones can now be used to take pictures and record video, send text messages and tweets, and access the internet. using a smartphone, you can receive and send email, get directions, play games, listen to music, and watch movies. you can now speak to your cell phone and it will answer back. ask it a question and it can tell you the answer. at some stores, customers can pay using their cell phones. the cell phone has become a handheld computer—an integral part of day - to - day technology. the question, therefore, inevitably arises: is it appropriate for students to use cell phones in schools? some schools have adopted policies to ban cell phone use in the classroom, but are these initiatives reasonable? although they have limitations, cell phones can be used to ensure student safety, help with job skill preparation, and aid in classroom instruction.

Explanation:

To solve this, we analyze the context of "integral" in the passage. The passage describes cell phones as a handheld computer and part of day - to - day technology. We need to find a word with a similar meaning to "integral" here.

• "Attractive" means appealing, which doesn't fit the context of being a necessary part of technology.
• "Obvious" means easily seen or understood, and it doesn't convey the idea of being a necessary part.
• "Undivided" means not separated, which is not the right meaning for describing a part of technology.
• "Essential" means necessary or very important, which matches the idea that cell phones are a necessary part of day - to - day technology.

Answer:

D. essential