Jane found it particularly difficult to manage a class of noisy students in middle school, which would leave her hoarse at the end of each day. She eventually discovered a new method, where she would...

Jane found it particularly difficult to manage a class of noisy students in middle school, which would leave her hoarse at the end of each day. She eventually discovered a new method, where she would instruct them in a clear voice to be quiet and simultaneously clap her hands thrice. After repeating this for two weeks, whenever she wanted the class to be quiet, she would just clap thrice to get the job done. Which of the following would be an explanation for this event?

A. Observational learning

B. Classical conditioning

C. Positive reinforcement

D. Operant conditioning