A Major Difference Between a Barrier Island and a Barrier

Multiple Choice

A major difference between a barrier island and a barrier spit is

A) one of regional terminology,a barrier island and a barrier spit are the same thing.
B) barrier spits are anthropogenic,modeled after natural barrier islands.
C) a barrier spit is connected to the mainland,whereas a barrier island is not.
D) a barrier spit is a depositional feature that connects the barrier island to the mainland.