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").

Example Input: Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Like other ants, the fire ant is a social insect., Question: What may live in large colonies? (A) animals (B) tigers (C) tardigrades (D) fire ants (E) bears (F) honeybees (G) orchids (H) graptolites
Example Output: D

Example Input: Fact1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins., Fact2: DNA acts as the store of genetic information., Question: What does DNA store? (A) information (B) Energy. (C) Chemical energy (D) voltage (E) calories (F) water (G) Energy (H) food
Example Output: A

Example Input: Fact1: Molecules of tRNA bring amino acids to the ribosome in the correct sequence., Fact2: Ribosomes are sites of protein synthesis., Question: Molecules of _ initiate protein synthesis (A) Acids (B) nektar (C) sugar (D) tRNA (E) H 2 O (F) three (G) CO 2 (H) HIV
Example Output:
D