Which of the Following Is an Example of Negative Reinforcement

Multiple Choice

Which of the following is an example of negative reinforcement?

A) Martha improves her grades in English and Math so that her mom can take her shopping as she had promised earlier.
B) Jeff wakes up a few seconds before his alarm clock goes off in order to avoid the obnoxious alarm sound.
C) Rodney mows the lawn more than once a week so as to get $10 from his mother every time he mows the lawn.
D) Barney rapidly increases the sales of his product and ensures complete sale of his stock so that he can get the full 20% bonus as promised by his employer.