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").

Fact1: pollination requires pollinators, Fact2: Several plant species require flooding for seeding establishment., Question: Several plant species pollinate through what? (A) bloom time (B) coded genes (C) Reproduction (D) Wind (E) tiny polyps (F) competition (G) gene flow (H) flooding
H