Correct option is B
Restraint– The act of holding back or keeping something under control, especially emotions or actions (संयम / नियंत्रण)
Example: He showed great restraint by not reacting angrily to the criticism.
Synonyms: Self-control, moderation, discipline.
Antonyms: Impulsiveness, indulgence, freedom.
Meanings of all options:
(a)Self-esteem– Confidence in one’s own worth or abilities (आत्म-सम्मान)
(b)Self-control– The ability to control one's emotions and behavior (आत्म-नियंत्रण / संयम)
(c)Self-appraisal– Evaluation of one's own performance or abilities (आत्म-मूल्यांकन)
(d)Self-acceptance– Acknowledging and accepting oneself as they are (आत्म-स्वीकृति)