Answer: a. the dual roles of the female.
Explanation:
According to Daniel Levinson’s theory of adult female development, there are three phases:
Phase 1: Leaving the Family
Phase 2: Entering the Adult World
Phase 3: Entering the Adult World Again
During phase II, women usually get married and have children, and this role can be prejudicial for her career as maintaining both roles it´s difficult.
Most new mothers go back to work within the child´s first year of age, and their careers suffer if they remain not working for longer periods of time.