Answer the following question: Fact 1: Stalactites are formed by deposition. Fact 2: Soils are sand, clay, limestone, and organic deposits. Given the two facts above, soil, sand, clay and limestone can form what?

OPTIONS: a). detritus. b). stalactites. c). swamp vegetation. d). coral reef. e). fossil fuels. f). Sediment. g). aqueous solution. h). growth.
Answer:
b).