Answer:
Answer is " A "
Explanation:
Because it's mainly talking about physiology & understanding the brain
The correct answer is key ideas or key points. Key ideas are the ideas that are emphasized through repetition. These ideas are repeated because it needs to be emphasized in order to be understood clearly. Repeated ideas may include a word or phrases. In addition, repetition is also used to persuade or convince the readers.
Answer:

Explanation:
700 is not a good estimate for the sum of 435 and 368.
Round the numbers to nearest hundreds.


Let’s add the estimated numbers.

800 is a good estimate for the sum of 435 and 368.