I think that the word restrict is a little misleading in this question. Restrict typically means to make less. In this case it means to eliminate the foods that that make it impossible for optimal health. In the case of the animals, it means giving them more of the foods they need.Also, the goal here is to restore the natural optimal levels so their normal life spans can be reinstated. Now let's take a look at choice A.If we are to believe that humans eat more than the optinmal level of calories, reducing the calories would bring them back to the optimal levels. That makes A the correct choice
Exactly! So doesnt that support and not weaken the argument?