As a Customer's Product Knowledge Increases, What Typically Happens to the Amount

Multiple Choice

As a customer's product knowledge increases, what typically happens to the amount of search conducted by the consumer?

A) It will continually increase.
B) It will continually decrease.
C) It will decrease, and then increase as the customer becomes more knowledgeable.
D) It will increase, and then decrease as the customer becomes more knowledgeable.