Ahmed chooses two different items for a snack. His choices are an apple, an orange, a banana, and a granola bar. How many different pairs of snacks could he choose?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7
Ahmed could choose from the following pairs of snacks: apple and orange, apple and banana, apple and granola bar, orange and banana, orange and granola bar, or banana and granola bar. Therefore, there are 6 different pairs of snacks that Ahmed may choose.

ANSWER: (D)