According to Blau and Duncan,stratification in America is based mainly on:

A) inheritance
B) individual achievement
C) luck
D) social networks
E) none of these choices

Individual Achievement

The accomplishment of personal goals or the attainment of success in specific tasks by an individual, often recognized or measured by external standards.

Blau

Refers to Peter Blau, a notable sociologist known for his contributions to the study of social structure and interpersonal dynamics.