Given the task definition and input, reply with output. 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").

Fact1: if all members of a species cannot produce offspring then that species will likely become extinct, Fact2: Avian species are less likely to become extinct if they are common across large ranges., Question: Avian species are less likely to end up extinct if they what? (A) single-celled organisms (B) important habitats (C) abandon habitats (D) stop reproducing (E) animals with backbones (F) produce offspring (G) population movement (H) destroy offspring
F