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: All cnidarians are aquatic., Fact2: Cnidarians are also called coelenterates., Question: What are aquatic? (A) coelenterates (B) trees (C) lizards (D) angiosperm (E) holding nutrients (F) trees and flowers (G) the Sun (H) humans

Output: 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: a compass is used for determining direction, Fact2: Navigation is done by compass only., Question: What is navigation used for? (A) predicting weather (B) Communication (C) speed at which sound moves (D) Being over land (E) local weather conditions (F) determining direction (G) help other species benefit (H) Stopping a vehicle
Output: F