He is eating healthy food because he wants to get skinny.
(Idk if this was how i was supposed to answer but I hope this help!)
Albert Bandura emphasized the interaction among behavior, conscious cognitive processes, and social experiences in his personality theory called social-cognitive theory.
Answer:
I will suggest u to eat less and healthy food then if u csnt diet and about exercise if u don't have time try to do it at home exercise like push ups sit ups.
The correct answer would have to be C age.
The knife, because its a knife