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").

Fact1: matter vibrating can cause sound, Fact2: All matter emits vibrations., Question: What kind of matter can produce sound? (A) sensory neurons (B) all matter (C) an object (D) only liquids (E) mechanical (F) only plasma (G) only solids (H) waves
B

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
D

Fact1: Populations of viruses do not grow through cell division because they are not cells., Fact2: Mitosis is cell division., Question: Which of the following do not grow using mitosis? (A) skin cells (B) genus (C) fungi (D) lung cells (E) blood cells (F) parasites (G) viruses (H) bacteria

G