Final answer:
B.F. Skinner introduced the term verbal behavior to deal with the performance of the speaker, based on his work in operant conditioning.
Step-by-step explanation:
The term verbal behavior was introduced by psychologist B.F. Skinner to address the performance of the speaker. Skinner's work was grounded in operant conditioning, a concept where behavior is shaped by its consequences in the form of reinforcements and punishments. Unlike classical conditioning, which involves a natural response to a stimulus, operant conditioning concerns behaviors that are controlled by their outcomes and can involve new behaviors that aren't reflexive. Skinner is famous for developing the Skinner box, which is a tool used in experiments to study operant conditioning. The correct answer to the question would be C) Skinner; performance.