Playing Tapes at Subliminal Levels or While Someone Is Sleeping

Multiple Choice

Playing tapes at subliminal levels or while someone is sleeping has been found to:

A) greatly improve memory, but only for semantic material.
B) affect performance on both implicit and explicit memory tests.
C) not improve performance on memory tests, except those that tap early childhood experiences.
D) you cannot learn new information by subliminal methods or by playing tapes while you sleep.