Answer:
c. Negative reinforcement
Step-by-step explanation:
Negative reinforcement: In psychology, the term "negative reinforcement" is one of the different types of reinforcement technique in the operant conditioning theory which was proposed by B. F. Skinner.
According to him, negative reinforcement is described as a process in which a specific behavior or response is being strengthened by avoiding, stopping, or removing an aversive stimulus or negative outcome.
In the question above, the given statement signifies that Emanuel is using negative reinforcement.