Answer:
C. Masculinity-femininity.
Step-by-step explanation:
Developmental tasks are those stages in human life that form aspects of how one leads his life onto the next. Psychologist Daniel Levinson helped develop a series of developmental tasks/ stages according to which an individual moves forward in his life as he grows older.
In the given example of Marcus, his change in behavior to being a "kinder, more compassionate boss" after taking care of his grandson is a form of the "masculinity-femininity" stage of the developmental task. In this aspect, Marcus's interaction, and experience in taking care of a young person affect his personality, tending to change his perception and personality. While still masculine, his need to take care of the young grandson also leads to a more feminine character in him, the need to nurture and become more 'soft', 'caring', and 'motherly like'.
Thus, the correct answer is option C.