Job satisfaction is defined as: Group of answer choices A.a motor behavior taken to improve one’s job performance. B.any behavior engaged in to improve one’s job performance. C.positive feelings resulting from appraisal of one’s work. D. any type of feeling resulting from appraisal of one’s work.

"Job satisfaction" is a concept that is used for an employee states that the employee is happy with its job or not. If he is happy then it means that he has job satisfaction.
The above question asked about the job satisfaction in which option C is the correct answer because, this option states about the appraisal from which the employees feel better. So it is the concept of job satisfaction because if the employee got a positive appraisal for his work then he is satisfied with the job. while the other option is not correct because:-

Option 'a' states about the job behavior of the employee but it states the positive and the negative think of the employee.
Option b states for the behavior which is used to improve the performance of the employee. It also does not state about job satisfaction.
Option d states about the positive and negative appraisal of the employee. But it gives the positive and negative think of the employee.