Weight gain occurs when a person consumes too much/many
a.
calories
b.
fat
c.
carbohydrates
d.
protein

select the best answer from the choices provided.

a
b
c
d

The answer to your question is A- calories.

A.  calories

Explanation:

Weight gain occurs when the person consumes more amount of calories than he or she burns through routine activity or sports, even though these calories may come from any kind of food content like fats, proteins, and carbohydrates.  

The person gains weight when the intake of calories in the food exceeds the number of calories expended through exercise or by basal metabolic rate.

this would and i think the answer is d