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: Migration is a type of movement that changes population size., Fact2: Insects can also migrate., Question: When insects move from one place to another, this usually causes (A) seed dispersal (B) Transfers energy (C) change in mood (D) death and devastation (E) change in population size (F) change in individual insect (G) change in shape (H) converting mass to energy
A:
E