Gradability is shown in the following pairs of words EXCEPT______.

A．Rubin interviewed both men and women.
B．Rubin interviewed people from different social backgrounds.
C．Rubin interviewed both married and single people.
D．Rubin interviewed people with different personalities.

A．but they have less intimacy in their friendships than men
B．but women rarely form friendships with men
C．and women are more open with their friends than men
D．but women's friendships are more short-lived than men's