When Observer Rats Were Exposed to a Novel Food Odor

Multiple Choice

When observer rats were exposed to a novel food odor on a demonstrator rat's breath,and then had their hippocampus lesioned,what happened to the lesioned rats' preferences for the novel food?

A) Their preference was reduced the most if the lesion occurred 30 days after their being exposed to the odor.
B) Their preference was reduced the most if the lesion occurred 1 day after their being exposed to the odor.
C) Their preference was enhanced the most if the lesion occurred 30 days after their being exposed to the odor.
D) Their preference was enhanced the most if the lesion occurred 1 day after their being exposed to the odor.