Motivation is the cause of people's actions. It can evoke action and direct activities to certain goals. According to the source of motivation, it can be divided into internal motivation and external motivation. And satisfaction; extrinsic motivation refers to the purpose of the behavior in order to obtain other external results or avoid punishment. Based on the above definitions, Which of the following behaviors are most likely to manifest intrinsic motivation:. ['In order to maintain good health, Xiao Zhao insists on exercising.', 'Zhang loves his profession very much and enjoys the process of teaching and educating people.', 'Xiaofang took first place in the swimming competition and she is proud of herself.', 'In order not to disappoint his parents, Xiao Ming studies very hard and strives for the ideal school.']