The approach believes children learn gender-related behaviors and expectations by observing others and noticing that they are rewarded for acting in gender-appropriate ways.

The answer is social learning. This theory is made by Albert Bandura. This theory conceives that people gain knowledge from one another, by means of imitation, observation and modeling. The theory has frequently been named a connection between cognitive learning theories and behaviorists since it includes awareness, memory, and enthusiasm.

I’d say either a or d i’m sorry if it’s incorrect.