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: Molecules of tRNA bring amino acids to the ribosome in the correct sequence., Fact2: Ribosomes are sites of protein synthesis., Question: Molecules of _ initiate protein synthesis (A) Acids (B) nektar (C) sugar (D) tRNA (E) H 2 O (F) three (G) CO 2 (H) HIV
D

Fact1: Animals can communicate with sounds, chemicals, or visual cues., Fact2: Unlike animal communication, properly human communication is abstract and linguistic in nature., Question: Which of the following do humans not use to communicate? (A) chemicals. (B) limb amputation (C) emissions (D) sweating (E) smoking pipes (F) dry conditions (G) visible energy (H) heat or cold
A

Fact1: sediment is formed by weathering, Fact2: Rocks breakdown by weathering., Question: When rocks break down, what do they make? (A) fossil fuels (B) sediment (C) disintegrate (D) soft soil (E) calcite (F) body water (G) hills and valleys (H) rupture
B