Participants in Many Experiments Show Clear Evidence of Implicit Memory

Participants in many experiments show clear evidence of implicit memory but fail on comparable tests of explicit memory. Yet the participants could, in principle, rely on their implicit memories to guide their guessing in the explicit test. If they did, they would perform well on the explicit tests. The text indicates that participants fail to do this because

A) implicit memories are memories of a sort that cannot be applied to a procedure with direct memory testing.
B) implicit memories are not detectable by the participant.
C) participants seem to treat their implicit memories as though they were unreliable chance associations, so they do not trust them to be actual memories.
D) participants seem to rely on implicit memories for perceptually based tasks but not for tasks that are more conceptual.