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: harming an animal species has a negative impact on the population size of that species, Fact2: Populations are the sub-units of species., Question: harming an animal species has a negative impact on the what? (A) sub-units of species (B) single-celled organisms (C) diet of species (D) most organisms (E) color of species (F) ancestors of species (G) Abnormal cell growth (H) Males and females
A:
A