Dana loves rocks! She has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate.
 What is the ratio of pieces of sandstone to pieces of marble in Dana's collection?
 Choose 1 answer:
 (Choice A)
 A
 14:6
 (Choice B)
 B
 3:24
 (Choice C)
 C
 14:3
 (Choice D)
 D
 24:3