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: a light bulb converts electrical energy into light energy when it is turned on, Fact2: Light bulbs are rated in Watts., Question: How is converted energy into light energy rated? (A) energy (B) unique (C) heat (D) good (E) watts (F) parsec (G) kilojoule (H) kinetic energy
Example Output: E

Example Input: Fact1: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Fishing pressure is relatively low due to a smaller human population., Question: What can make the bottleneck effect occur in fish? (A) increased habitat (B) acid rain (C) humans (D) Winter (E) increased food (F) storms (G) increased resources (H) Toxicity
Example Output: C

Example Input: Fact1: bacteria cause food to spoil, Fact2: Bacteria thrive in higher temperatures., Question: What can cause food to spoil? (A) single-celled organisms (B) Salting (C) Higher temperatures (D) Canning (E) sea squirts (F) a pathogens (G) Refrigeration (H) harmful substances
Example Output:
C