According to Sternberg's Triangular Theory of Love, the most complete, ideal type of love is

a. Infatuation

b. Passion

c. Intimacy

d. Consummate

The answer is D.

According to sternbergs, the consummate type of love representing an ideal relationship which all people want

Both partners int his type of love will likely to have a great sex even after 15 years of marriage, and both of them think that they couldn't be happier with someone else

The correct answer is D. Consummate love is the most essential because it contains the other ones (passionate, intimate and committed)