Answer:
reinforcement
Explanation:
Drive reduction theory advanced the idea that humans, and other animals, have needs which push them in the direction of satisfying said need.
Clark Hull who developed the theory, believed that the human behavior can be explained by reinforcement and conditioning.
When a drive is reduced it causes satisfaction, this then leads to the reinforcement of that behavior. Hence an individual is more likely to repeat a behavior when the reinforcement increases. The reduction in the drive serves as a positive reinforcement or a reward, for the individual to repeat a behavior.
Therefore reinforcement pulls an individual to do or not to do something.