The belief in one's ability to be successful in the performance ofa given task is termeda. self-efficacy. b. self-esteem. c.self-conceptd. self-fulfilling prophecy

a) Self- efficacy.

Explanation:

Self- efficacy is defined as the belief that a person holds within theirselves for fulling any task or achieving goal through their behavior.They rely on their performance for achieving something due to their beliefs which reflects confidence, enthusiasm , positive thinking and motivation.

Other options are incorrect because self esteem is keeping respect of own-self.Self-concept is the theory or content created by a person on their own-self. Prediction that comes true in reality due to the belief is self fulfilling prophecy. Thus, the correct option is option(a)

SELF-EFFICACY.

Albert Bandura born December 4, 1925 is a psychologist who has contributed to the field of education and to several fields of psychology, including social cognitive theory, therapy, personality psychology etc.

He is also the theoretical construct of the term SELF-EFFICACY.

He defined self efficacy as "how well one can execute courses of action required to deal with prospective situations".

This definition is in line with the question above which is the belief in one's ability to be successful in the performance of a given task.

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b) the planets year length would be longer

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