The Paradox Concerning REM Sleep Is That While ​

Multiple Choice

The paradox concerning REM sleep is that while ​

A) it is a deep sleep, the person is easy to awaken.
B) it is a deep sleep, the brain-wave pattern resembles the pattern of an alert and awake individual. ​
C) the person is dreaming, the brain-wave pattern resembles that of an awake and relaxed individual. ​
D) the person is dreaming, his muscles are practically paralyzed. ​