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").

Input: Consider Input: Fact1: a glacier causes mechanical weathering, Fact2: Largest of the glacier-formed lakes is Karakul., Question: What can be formed by mechanical weathering? (A) NaCl (B) white (C) rock (D) tube (E) soils (F) Roads (G) Lakes (H) sand

Output: G

Input: Consider Input: Fact1: Active immunity results when an immune response to a pathogen produces memory cells., Fact2: Vaccination is Active Acquired Immunity., Question: What results when an immune response to a pathogen produces memory cells? (A) anemia (B) vaccination (C) kill them (D) competition (E) lie detectors (F) rapid expansion (G) killing insects (H) it needs them

Output: B

Input: Consider Input: Fact1: Temperature falls from lower to higher altitudes., Fact2: Temperatures vary with altitude and season., Question: What makes temperature vary? (A) it's state (B) voltage (C) wind (D) seasons (E) fever (F) Summer (G) sweating (H) sun's heat
Output: D