The developmental stage for language that exists in the 1st to 3rd months and consists of gestures and facial expression is ______________

Many people who are depressed

A) enter REM sleep at a normal time, but have very slow and mild rapid eye movements and have less overall time in REM sleep than normal. B) enter REM sleep earlier than normal and have larger amounts of REM sleep early in the night. C) show very little REM sleep, instead they spend large amounts of time in the deeper stages (3 and 4) of sleep. D) do not enter REM sleep until much later in the night than normal and have smaller amounts of REM sleep throughout the night than normal.

If an entire population of N = 20 scores is transformed into z-scores, the set of 20 z-scores will have ?X = 0

Indicate whether the statement is true or false