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: fossils are formed when layers of sediment cover the remains of organisms over time, Fact2: Plants and animals are organisms., Question: What forms when plants are covered in layers of sediment over time? (A) Conifers (B) watershred (C) fossils (D) H2O (E) Echinoids (F) bubbles (G) loose soil (H) bones
Example Output: C

Example Input: Fact1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil, Fact2: Roots gather plant nutrients., Question: What does looseness of soil have an impact on? (A) age of the plant (B) viability of plant (C) important habitats (D) bloom time (E) climate (F) water retention (G) Plants growth (H) genetic diversity
Example Output: G

Example Input: Fact1: All life relies on a relatively narrow range of pH, or acidity., Fact2: Biochemical reactions are catalyzed by enzymes that have very narrow ranges of optimum pH values., Question: All what relies on a narrow range where biochemical reactions can be catalyze by enzymes (A) sugar (B) weathering (C) Crops (D) CO 2 (E) climate (F) heat (G) life (H) weather
Example Output:
G