The social clock refers to

A) an individual or society's distribution of work and leisure time.
B) adulthood responsibilities.
C) typical ages for starting a career,marrying,and so on.
D) age-related changes in one's circle of friends.

Social Clock

A societal concept referring to the culturally preferred timing of major life events, such as marriage, parenthood, and retirement.

Typical Ages

Refer to the average or most common ages at which specific milestones or behaviors are expected to occur in the development of humans.

Career

The pursuit of a lifelong ambition or the general course of progression towards lifelong goals in a professional or vocational context.