During REM Sleep, a Dreamer Tends to Uncritically Accept the Seemingly

During REM sleep, a dreamer tends to uncritically accept the seemingly illogical and occasionally bizarre details of his or her dreams. In terms of brain functioning, what seems to account for this?

A) REM sleep involves decreased activity in the frontal lobes, which are involved in rational thinking.
B) Only the regions at the base of the brain are operational during REM sleep.
C) The hippocampus and amygdala stop functioning during REM sleep.
D) Dreaming activates the brain's right hemisphere, but not the left hemisphere, which is almost completely inactive.