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: Mammals can also generate little bursts of heat by shivering., Fact2: Polar bears are mammals., Question: What can generate little bursts of heat by shivering? (A) alpacas (B) bacteria (C) animals (D) polar bears (E) phytoplankton (F) rabbit (G) viruses (H) humans
[EX A]: D

[EX Q]: Fact1: Echinoderms lack a centralized nervous system., Fact2: Sand dollars and sea biscuits are also echinoderms., Question: What lacks a centralized nervous system? (A) Damaged hearing (B) Humans (C) Horses (D) Sand dollars (E) insects (F) Chickens (G) Pesticides (H) barnacles
[EX A]: D

[EX Q]: Fact1: chemical splashing can cause harm to humans, Fact2: Humans are animals too., Question: what can chemical splashing case harm to? (A) density (B) gravity (C) organisms (D) dolphins (E) people (F) weathering (G) animals (H) consumers
[EX A]:
G