In an Experiment Designed to Test Memory Processes,one Group Was

In an experiment designed to test memory processes,one group was asked to group the items on a list into categories while trying to memorize them.A second group was told to rhyme each of the words on the list.In this study,which group is the control group

A)  the group that was told to categorize 
B)  the group in which the participants remember the most items from the list 
C)  the group that was told to rhyme 
D)  a third group that was not given special instructions