At Dinner One Night, Danny's Refuses to Eat All of His

At dinner one night, Danny's refuses to eat all of his meal with the exception of some plain pasta noodles. Danny's parents should:

A) force him to eat his vegetables too.
B) not worry; as long as they regularly offer him healthy foods he should be fine.
C) be very concerned; he is likely to develop a nutrient deficiency.
D) use chocolate cookies to bribe him to eat his entire meal.