Mary and Raoul are in their sixties. Mary has always been extroverted and loves meeting new people. Her husband, Raoul, enjoys the company of close friends, but is generally extremely uncomfortable meeting new people. Knowing this about her husband, whenever they are invited to a party, she asks the host about who they might know among the invitees, and the background and interests of any new people. She then briefs her husband on the guest list to reduce her husband's anxiety and makes the situation feel less threatening. Which of the following best exemplifies Mary's use of a key contribution made by trait approach research?

A. Older females report themselves to be higher in extraversion, agreeableness, and openness to feelings, so Mary is more open to new experiences than Raoul.
B. Older men tend to become higher in agreeableness and conscientiousness, so Raoul will try to adapt.
C. Older females and male differ less in extraversion as they age, which changes the dynamics of interactions in a situation that can help Raoul adapt.
D. Older males report themselves higher in assertiveness and openness to ideas as they age, so Raoul will gradually become more socially comfortable over time.

Answer: C