In Matching,assignment to Experimental and Control Groups Is Done by

In matching,assignment to experimental and control groups is done by

A) using a table of random numbers to direct individuals to groups.
B) reviewing individual characteristics so that groups are as alike as possible.
C) assigning individuals to groups based on their gender.
D) flipping a coin and placing individuals and groups depending on whether the toss is tails or heads.
E) none of these