Detailed Instructions: 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: Flowers attract animal pollinators., Fact2: Insects are the most common animal pollinators, and bees are the most common insect pollinators., Question: Bees and other insects are attracted on purpose by what? (A) colors (B) orchids (C) human food (D) chemicals (E) flowers (F) humans (G) pollen (H) perfume
A:
E