Because they improve healing, aid in recovery after exercise, and reduce the risk of cancer, it’s important to eat at least 1 ½ cups of per day.
a. fruits
b. dairy products
c. grains
d. vegetables

It indeed is important to eat at least 1 and one half of a cup of fruits - a. However, it is also extremely important to eat a lot of vegetables as well as they have the same effects while it is better to eat a higher amount of vegetables in the end. 

Its either c or d. i would go with d though, because im not sure if its legal in all of the us