classical conditioning help!?

Raul Tllo: 1 is C, the clap of thunder in an unconditioned stimulus because a clap of thunder will make anyone's heart rate rise, it did not have to be conditioned into Mindy.2 is D, for the same reasons as #13 is A, the actor is a conditioned stimulus because you must have learned to love the actor over time, its not natural to like the actor the first time you see him or her.4 is C, her fear is a conditioned response because she has been conditioned to exhibit fear (response) when she sees a snake (conditioned stimulus)...Show more