15. There are 11 different food items in a buffet. A customer is asked to get a certain number of
items. If the customer has 330 possible ways as a result, which of the following did he possibly
do?
A) Choose 4 out of the 11 items
C) Choose 8 out of the 11 items
B) Choose 6 out of the 11 items
D) Choose 7 out of the 11 items​