Definition: 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").
Input: Fact1: threatening behavior by predators causes a porcupine to extend its quills, Fact2: Similarly, threatening or intimidating behaviors are also forbidden., Question: What defense mechanism does a porcupine use when intimidated? (A) eardrum (B) deadly (C) sound (D) instincts (E) steroids (F) organ (G) quills (H) blastoids
Output:
G