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").
Problem:Fact1: threatening behavior by predators causes a porcupine to extend its quills, Fact2: Aggression is active, harmful and offensive, threatens all and benefits none., Question: What by predators cause porcupines to extend their quills? (A) hypothyroidism (B) killing insects (C) kisses (D) aggression (E) love (F) hyperthyroidism (G) kinetic energy (H) cohabitating
Solution:
D