Rapid climate change along with the stress of adapting to changing water and food supplies were a major factor in the evolving size and complexity of the human brain

True.

Explanation:

In remote times, human beings lived lives very different from the ones we live today and, consequently, their body and brain was different from ours, but it was being modified, through evolution, until it reached the biotype we know today.

An essential point of this evolution was the environment that the earth offered the human species and all the changes that this environment underwent. As well as, stressful life and deprivation, often of food and other elements.

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.

answer: your option is c.

explanation: