Question: Three years ago, Jeff ate some bad scallops and was violently ill a few hours afterwards. Today, he cannot even think about scallops at without feeling nauseous. Why is Jeff's conditioned taste aversion puzzling from the perspective of the general principles of classical conditioning? Need Assignment Help? (select all that are correct) Question options: a) Scallops are not ecologically relevant stimuli, and so should not elicit such strong responses. b) The association that Jeff made between eating the scallops and feeling sick required only a single US-CS pairing. c) Jeff had enjoyed many scallops in the past, and so this conditioning should not have occurred. d) The interval between Jeff's eating the scallops and him being sick was too long to result in classical conditioning.