Which Quote Is Most Similar to Thorndike's Concept of Instrumental

Multiple Choice

Which quote is most similar to Thorndike's concept of instrumental conditioning?

A) "Emotions are a function of beliefs, not events."
B) "Emotions are the outgrowth of passive associations we make with positive and negative stimuli in the world."
C) "Most of our behavior is motivated by factors of which we are not conscious."
D) "We do more of whatever behavior pays off."