Ryan serves ice cream at a beach shop. his store serves chocolate, strawberry, mint, and vanilla ice cream. how many combinations are possible if someone orders 2 different scoops of ice cream?

Well lets see, since it says 2 "different" scoops, you can do multiple combinations

mint + vanilla

strawberry + vanilla

chocolate + vanilla

then there is

mint + chocolate

mint + strawberry

lastly there is...

chocolate + strawberry

now add them.

There are 6 different combinations. If you need an explanation, you can just ask. :)

The answer would be c