What Is the Primary Function of an Implicit Association Test

What is the primary function of an implicit association test?

A) determining a person's "unconscious intelligence"
B) to explore people's network of cognitive associations by asking them to name one word after another without conscious reflection
C) to determine the extent to which people tend to think more implicitly, as opposed to explicitly
D) to determine the extent to which people mentally associate two concepts, even outside of conscious awareness