A store sells eight different kinds of shirts. If we want to buy two different kinds of shirts, how many possible combinations of two shirts can we buy? Pick one.
A) 22	B) 24	C) 26	D) 28	E) 30
8C2=28.   The answer is 28.
<result>D</result>
A store sells eight different kinds of shirts. If we want to buy two different kinds of shirts, how many possible combinations of two shirts can we buy?