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").

[EX Q]: Fact1: Cells are organized into tissues, and tissues form organs., Fact2: Major organs, including the kidneys and liver, begin to grow., Question: what forms the liver? (A) bile (B) alcohol (C) stones (D) animals (E) ovaries (F) cells (G) meat (H) humans
[EX A]: F

[EX Q]: Fact1: wind and rain cause erosion, Fact2: Water, in the form of rain, is the most effective agent of erosion., Question: What causes erosion the most? (A) streams (B) motion (C) LEDs (D) water (E) Roads (F) rivers (G) Winter (H) wind
[EX A]: D

[EX Q]: Fact1: Evaporation of sweat uses energy, and the energy comes from body heat., Fact2: Heat When exercising, the body creates excess heat., Question: Evaporation of sweat uses energy, where does the energy come from? (A) vapors (B) temperature (C) expelled (D) environment (E) hydration (F) water vapor (G) The Sun (H) exercise
[EX A]:
H