People Differ on the Method by Which Stock Should Be

People differ on the method by which stock should be valued.Some people are chartists, others behaviorists.The basic difference between these groups is:

A) chartists rely on astrological charts to predict stock values, behaviorists rely on psychology.
B) behaviorists are finance based, chartists study charts of investor psychology.
C) chartists study charts of stock prices; behaviorists focus on investor psychology and behavior.
D) chartists and behaviorists are the same in their approach; essentially there aren't any differences.