- Fri Sep 30, 2016 4:14 pm
Answer D helps support the conclusion, which is that cooking probably made it possible for humans to develop large brains despite our small guts. Your answer needs to focus on cooking, and how cooking could have made this possible. Answer D does this by telling us that we use less calories when we eat (process) cooked food, so our net gain in calories would be greater when we eat cooked food than when we eat the same quantity of raw food. Think of it as being about fuel efficiency (because it is). If eating raw food uses up more calories than eating cooked food, cooking would allow us to get more calories from less food (or at least, more calories from the same quantity of food).
Adam M. Tyson
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