Professor Kaikai Often Tells His Students That "Repetition Is the Mother

Multiple Choice

Professor Kaikai often tells his students that "repetition is the mother of retention,so make sure to study the material we discuss in class repeatedly,and you will do better on the next exam! Trust me,what took you an hour to learn today will only take you 20 minutes to re-learn tonight,but only if you make sure to study!" Professor Kaikai is attempting to use the learning principle of __________ to assist his students' study skills.

A) discrimination
B) generalization
C) savings
D) extinction