If your goal is to maintain a normal weight you should: O Increase your caloric intake by 200-500 calories per day
O Decrease your caloric intake by 300-500 calories per day
O Follow the ABC's & Food Guide Pyramid
O Exercise everyday

In this question, you don't know if they are implying a person overweight, or someone underweight. So we cannot guess one of them. That automatically takes out A and B. It also cannot be C because if you were to eat and not exercise ever, you will not be as healthy people strive to be. So the answer would be A - exercise every day.

answer; planning ahead;