What Would Be the Most Likely Result of a Lesion

Multiple Choice

What would be the most likely result of a lesion in the parabrachial nuclei in a rat being tested for their Pavlovian fear conditioning?

A) the rat would have reduced freezing behavior in response to the tone because of a lack of input central nucleus of the amydala
B) the rat would have increased freezing behavior in response to the tone because of an increase of input central nucleus of the amydala
C) the rat would have no change or very little change in their freezing behavior because of multiple inputs to the central nucleus of the amydala
D) the rat would have an inability to sense pain and therefore be conditioned with a foot shock