Which Is a Major Difference Between a Barrier Island and a Barrier

Multiple Choice

Which is a major difference between a barrier island and a barrier spit?

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