child developement
posted by jane .
A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by
A. classical stage theory
B. probility theory
C. locomotionx theory
D, Piaget,s Theorem

You are dealing with a subject with terminology that's highly specific to this subject alone.
What does your text give as definitions for these four terms? 
Is a correct?

the corrent answer is B

B is the answer pg. 146.