instruction:
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").
question:
Fact1: skin is used for protecting the body from harmful substances, Fact2: Skin is the body's largest organ., Question: What can protect the body from harmful substances? (A) the body's largest organ (B) layers of fat (C) Electric devices (D) bones (E) sunburns (F) hard outer covering (G) deoxyribonucleic acid (H) muscle
answer:
A


question:
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
answer:
D


question:
Fact1: Adult echinoderms have radial symmetry., Fact2: All echinoderms are deuterostomes ., Question: what have radial symmetry? (A) deuterostomes (B) Veins and arteries. (C) barnacles (D) alpacas (E) solid, liquid, gas (F) sensory neurons (G) gastropod shells (H) graptolites
answer:

A