Biological Researchers Would Agree with All of the Following EXCEPT

Biological researchers would agree with all of the following EXCEPT:

A) during REM sleep, a reverse learning occurs and unused synaptic connections become weaker.
B) during REM sleep, synaptic connections associated with recent memories are strengthened.
C) dreams are meaningful and can tell us about important unconscious conflicts in the dreamer.
D) brain stem mechanisms fire spontaneously and the cortex tries to synthesize the signals.