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").

[Q]: Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Like other ants, the fire ant is a social insect., Question: What may live in large colonies? (A) animals (B) tigers (C) tardigrades (D) fire ants (E) bears (F) honeybees (G) orchids (H) graptolites
[A]: D


[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
[A]: D


[Q]: Fact1: Sweating reduces body heat., Fact2: Humans, of course, can sweat and perspiration tastes salty., Question: What does perspiration do? (A) decreases (B) increase body heat (C) Evaporation (D) reduce body heat (E) rain (F) It gets heated up (G) change weather (H) It expands
[A]:
D