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: sandpaper is used to smooth wooden objects, Fact2: All objects, even wooden tables, are made up of molecules which vibrate to create their mass., Question: What can be used to smooth a table? (A) Wax paper (B) Sponge (C) lamphreys (D) Tissue (E) Sandpaper (F) scratching it (G) keratin (H) tiny hairs
Example Output: E

Example Input: Fact1: conserving resources has a positive impact on the environment, Fact2: Recycling saves energy, conserves natural resources and helps protect the environment., Question: What impact does recycling have on the environment? (A) Positive (B) humans (C) Negative (D) less water (E) mild (F) protect them (G) It changes life as we know it (H) It's inconsequential
Example Output: A

Example Input: Fact1: increasing heat causes thermal expansion, Fact2: Thermal expansion can cause serious problems., Question: Increasing heat causes what? (A) lower temperatures (B) chemical reaction (C) cooler weather (D) serious problems (E) Evaporation (F) global warming (G) kinetic energy (H) refrigeration
Example Output:
D