According to life-span development expert Paul Baltes, which age period dominates development? A. infancy-childhood

B. adolescence-early adulthood

C. middle-aged to late adulthood

D. No single age group dominates development.

D. No single age group dominates development.

Explanation:

Paul Baltes was a sociologist who was the proponent of the theory that human development is a process that takes place throughout a life-span. Development begins at birth and ends at death.

There is constant development in a person. One age range does not have more development than others.

Hence, the answer to the question is D. No single age group dominates development.