Shelby Took Part in a Research Study in Which,for Three

Multiple Choice

Shelby took part in a research study in which,for three consecutive nights,she was awakened each time she entered REM sleep.What will happen when Shelby is back at home

A)  She will spend extra time in REM sleep for several nights. 
B)  She will develop insomnia and show general disturbances in her sleep patterns. 
C)  She will spend less time in REM sleep than she did before she took part in the study. 
D)  She will spend extra time in both slow-wave and REM sleep for several nights.