Your Favorite Restaurant Offers a Total of 11 Desserts, of Which

Multiple Choice

Your favorite restaurant offers a total of 11 desserts, of which 9 have ice cream as a main ingredient, and 8 have fruit as a main ingredient. Assuming that all of them have either ice cream or fruit or both as a main ingredient, how many have both ?

A) 7
B) 3
C) 6
D) 2
E) 17