D lack of time cause time management can make people not do things they wish
Likely the chronological age, mainly because it would explain the differences in puberty stages between the two boys, which is an example of physical maturation.
The correct answer is C. Conformity
Explanation:
In psychology, the term conformity refers to the way individuals modify their behaviors, actions, beliefs, and values to match those of other people and fit in society, usually by conforming to other people's ideas and perspectives rather than defending one's perspectives. Conformity is closely connected to Merton's Strain Theory that proposes social pressure makes people try to achieve certain "social goals" or pushes them to deviance because due to conformity individuals modify their goals and ways to achieve them to socially fit. Thus, the mode of adaptation in which individuals achieve culturally approved goals through culturally approve methods is conformity.