Which of these is the best example of a goal for an improved diet

A) Eat from all the basic food groups.

Explanation:

Having a balanced diet it´s the main goal and average recommendation by any nutritionist for their service users.

An improved diet needs to be perfectly balanced, providing all the necessary nutrients from diverse kinds of food.

Eating from the different basic food groups moderately gives an enormous quality to a diet, giving to the individual different essential nutrients from different sources (carbs from the rice, proteins from the meat, vitamins from the salads, etc).