During which of schaie's stage if the focus on tasks that have personal meaning?
a. achieving
b. responsible
c. executive
d. reintegrative

a. Achieving

Explanation:

The theoretical model proposed by Schaie is based on the fulfillment of motivational objectives throughout the life cycle that are answering the three questions explained above: what do I need to know ?; How do I put it into practice ?; Why do i know what i know? Under these three premises, Shaie proposes 7 stages of cognitive development

Achievement stage It includes from the end of adolescence (19-20 years) to approximately 30 or 31 years. The knowledge acquired is managed to achieve personal goals: finish a career, find a job, a family, we fulfill our expectations that have kept us motivated towards some objectives that we met based on the tools and skills acquired in the previous stage.

Achieving.

Explanation:

According to Schaie's stages the achievement stage is the one where the person focus is on achieving personal  long term goals such as, marriage, a career, starting a family, etc. This stage is in the young adulthood between 20 and 30 years old approximately.

yes it is weird but true