A Person Says, "I Often Feel Like I Have Been

A person says, "I often feel like I have been dreaming just before I awake in the morning." Which rationale correctly explains the comment?

A) Sleep architecture changes during the sleep period, resulting in increased slow-wave sleep at the end of the cycle.
B) Cycles of REM sleep increase in the second half of sleep and occupy longer periods.
C) Dreams occur more frequently when a person is experiencing unresolved conflicts or depression.
D) Dream content relates directly to developmental tasks. The person is likely feeling autonomous.