In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Q: Fact1: Mating is generally preceded by courtship., Fact2: Flirting, the first step in the courtship ritual, is essential to modern relationships., Question: what is generally preceded by flirting in a modern relationship? (A) PDAs (B) ligt (C) Decibels (D) firm hugs (E) friction (F) heat (G) autumn (H) mating
A:
H