Distance is to as familiarity is to

a. the propinquity effect; opposites attract
b. functional distance; complementary attraction
c. the propinquity effect; the mere exposure effect
d. romantic love; the mere exposure effect

None of the above

Explanation:

Distance is to functional distance as familiarity is to the propinquity effect. Familiarity and propinquity effect are notable concept in the study of interpersonal attraction.

Functional distance in the study works with distance and explains one's attraction to another depending on far or near this person is to him. The propinquity effect on the other hand, which is identified with familiarity in the question, is one's attraction to someone they meet frequently and have gotten used to. The options in the question above do not satisfy the answers correctly.