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: Fungi have special structures for penetrating a host., Fact2: Host specificity was also observed for some fungi and tree species., Question: What have special structures for penetrating trees (A) Fungi (B) flowers roots (C) rain (D) fungus (E) LEDs (F) grasshoppers (G) ferns (H) bamboo
A:
A