Every Day After Class,Jerome Smells Delicious Pizza from Steel's Pizza

Multiple Choice

Every day after class,Jerome smells delicious pizza from Steel's Pizza House on his walk home and his mouth starts to water.One day,Jerome is riding the bus home from class and sees the Steel's Pizza House sign,and even this makes his mouth start to water.Jerome has most likely experienced all of the following EXCEPT

A) strengthening of synaptic connections.
B) habituation.
C) long-term potentiation.
D) learning.