Which of the following statements about love is accurate?

A) Love relationships encompass similarities, not opposites.
B) Love relationships have the same level of exclusiveness as best-friend relationships.
C) Love has a paradoxical quality.
D) Love involves a subjective feeling but no activity.

Love can be paradoxical in that it involves both positive and negative emotions, such as joy and pain, and can simultaneously bring people together and drive them apart. The other choices are inaccurate: A describes the idea of homophily, but love relationships can also involve complementary differences; B is not accurate as romantic love typically entails higher levels of exclusivity than friendships; and D is incorrect as love often involves behaviors and actions that reflect and reinforce the subjective feeling.