Positive reinforcement, also known as positive reinforcement, is the use of encouragement to affirm a certain behavior, make the individual feel beneficial, and thus willing to maintain their positive behavior. According to the above definitions, Which of the following are positive reinforcements:. ['A found that no one laughed at his spoken pronunciation in the English corner, and he often went to the English corner in the future.', "B's speech in class was publicly praised by the teacher, and his number of speeches increased significantly later.", "C's office was stolen, and he has to check the doors and windows every time he leaves the office.", 'Ding once met the leader when he was late for work, he would never dare to be late again.']