Which One of the Following Alternatives Best Describes Instrumental Conditioning

Which one of the following alternatives best describes instrumental conditioning?

A) Learning to use man-made tools in order to accomplish difficult tasks more easily
B) Learning to behave in ways that either bring pleasure or reduce the likelihood of aversive events
C) Learning that certain stimuli in one's environment often bring either physical or psychological pain
D) Learning complex sequences of psychomotor behaviors (e.g., dribbling and then shooting a basketball)