Which Sequence of Family-Related Events Was the Expectation (Until the Late

Which sequence of family-related events was the expectation (until the late 20^th century) of the family life cycle?

A) Work $\rightarrow$ have children $\rightarrow$ marry $\rightarrow$ become a grandparent $\rightarrow$ get old $\rightarrow$ retire
B) Have children $\rightarrow$ marry $\rightarrow$ complete education $\rightarrow$ work $\rightarrow$ retire
C) Marry $\rightarrow$ complete education $\rightarrow$ have children $\rightarrow$ become a grandparent $\rightarrow$ get old
D) Complete education $\rightarrow$ marry $\rightarrow$ have children $\rightarrow$ get old $\rightarrow$ become a grandparent