Which Has Been Shown to Occur When Rats Trained to Associate

Which has been shown to occur when rats trained to associate foot shock with an auditory tone exhibit an exaggerated auditory startle reflex?

A) Cells in the cerebellum show an LTP like increase in their synaptic response.
B) Cells in the amygdala show an LTP like increase in their synaptic response.
C) Cells in the hippocampus show an LTD like increase in their synaptic response.
D) iLTD occurs.
E) Post-tetanic potentiation occurs.