Which Scenario Would Result in the Fastest Acquisition of a Classically

Multiple Choice

Which scenario would result in the fastest acquisition of a classically conditioned response?

A) Hugh repeatedly rings a bell after he gives his dog a bone,over multiple trials.
B) Hugh rings a bell and then gives his dog a treat 30 minutes later,over multiple trials.
C) Hugh makes his dog "play dead" and then gives him a treat if he has performed the behaviour.
D) Hugh makes two pieces of toast every morning,and when they pop out of the toaster,he throws one of the pieces of toast to his dog.