A loud noise awakens you; you emerge from sleep confused and do not remember the noise. You were in which stage of sleep?
A. Stage 1
B. Stage 2
C. Stage 3
D. Stage 4
Answer:D
A loud noise awakens you; you emerge from sleep confused and do not remember the noise. You were in which stage of sleep?
A. Stage 1 B. Stage 2 C. Stage 3 D. Stage 4