Which of Schaie's stages of development suggest that the major concerns of middle-age adults relates to their personal situations?

a. Responsible stage

b. Executive stage

c. achieving stage

d. Acquisitive stage

option A.

Explanation:

The correct answer is option A.

Responsible stage suggests the major concern of middle age related to personal situation.

Executive stage is the stage in middle adulthood where people have broader perspective than earlier people care about the world.

Achieving stage is stage of young adults where intelligence is applied to achieve long term goal like career.

Acquisitive stage is a first stage of development which includes all the childhood and adolescence.