This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia Spectrum and Other Psychotic Disorders, Subject name: Psychiatry
A 14 year old boy stas cleaning his room regularly because he wants to avoid the scolding of mother. This is called as- 
Select and explain. 
A. Positive reinforcement, B. Negative reinforcement, C. Punishment, D. Extinction
B: Negative reinforcement
Answer: B: Negative reinforcement 
Explanation: Negative reinforcementis a method that can be used to help teach specific behaviors. With negative reinforcement, something uncomfoable or otherwise unpleasant is taken away in response to a stimulus. Over time, the target behavior should increase with the expectation that the unpleasant thing will be taken away.