The culturally determined sense of timing that signals and records major milestones in adults' lives is referred to as the __________ of adulthood.

A) social clock
B) ticking time bomb
C) biological countdown
D) developmental schedule

Social Clock

A societal timetable for achieving life's major milestones, such as marriage, parenthood, and retirement.

Adulthood

A phase of life that follows adolescence, marked by full physical development, legal responsibility, and often increased independence and social responsibilities.

Timing

The measurement or tracking of the duration in which events or processes occur, often emphasizing the importance of coordination and synchronization.