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: Feathers help birds fly and provide insulation., Fact2: Some birds are flightless birds., Question: Why do the flightless have feathers? (A) layers of fat (B) Sublimation (C) it needs them (D) warm-blooded (E) Air conditioning (F) Radiation (G) Insulation (H) protect them

Output: G


Input: Consider Input: Fact1: disease-causing microbes have a negative impact on the body, Fact2: Water was tested for the presence of disease-causing microbes., Question: Water that is not what can have a negative impact on the body? (A) salinity (B) chemicals (C) sweat (D) an object (E) tested (F) deadly (G) dangerous (H) dead

Output: E


Input: Consider Input: Fact1: sunlight and rain can cause a rainbow, Fact2: Liquid precipitation is measured with a rain gauge., Question: What can cause a rainbow? (A) photosyntehsis (B) tornadoes (C) sun and hot weather (D) snowfall and fog (E) chemical messengers (F) sun and liquid precipitation (G) algae and plants (H) photosynthetic pigments?


Output: F