The fear of the rat was the conditioned response (CR) in this case.
A conditioned response (CR) is a process involved in classical conditioning. A CR refers to a response by an animal or human being, after they associate a situation or experience with a neutral<span> </span><span>stimulus. After repeated pairing of a neutral stimulus with a certain experience, the neutral stimulus evokes a response in a human or animal.</span>
Transaction can be done if the security is exempted from registration in State X and transaction can also be done if the security is listed on the national securities exchange in the United States.