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: chemical weathering causes iron in rock to oxidize, Fact2: Oxides Oxides Oxides are elements combined with oxygen., Question: Chemical weathering causes iron in rock to combine with what? (A) uranium (B) oxygen (C) cartilage (D) nothing (E) an object (F) vacuum (G) energy (H) heat

Output: B


Input: Consider Input: Fact1: Balance is the ability to sense and maintain body position., Fact2: People fall when they lose their sense of balance., Question: the ability to sense and maintain body position prevents people what (A) falling (B) death (C) illness (D) starving (E) blindness (F) disease (G) depression (H) sweating

Output: A


Input: Consider Input: Fact1: Caecilians can be found in moist soil near rivers and streams in tropical regions., Fact2: Caecilians are primitive amphibians that resemble earthworms., Question: Where can tropical animals that resemble earthworms be found? (A) dry conditions (B) our planet (C) floor (D) storing water (E) less water (F) moist soil (G) dry soil (H) jungle


Output: F