The Following Passages Contain Novel Information Describing Real Animal and Human

The following passages contain novel information describing real animal and human behaviours. Use the choices to classify the type of learning exemplified by each passage. A learning type may be used once, more than once, or not at all.
-A teacher gives candy only to the children in her class who finish the assignment on time. The other children receive no reward. The next day, a larger proportion of children finish the work on time.

A) imprinting
B) classical conditioning
C) operant conditioning
D) insight learning
E) habituation