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: a plant requires photosynthesis to grow, Fact2: Legumes are typical of that type of plant., Question: what requires photosynthesis to grow? (A) Roundworms (B) clouds (C) Conifers (D) Echinoids (E) humans (F) h2o (G) legumes (H) sugar
[EX A]: G

[EX Q]: Fact1: high pressure systems cause clear weather, Fact2: High pressure systems tend to bring calm weather., Question: What do high pressure systems make? (A) heat energy (B) energy (C) electricity (D) calm days (E) fossil fuels (F) Solutions (G) Pollution (H) Metling snow
[EX A]: D

[EX Q]: Fact1: Constriction occurs when the muscular walls of blood vessels contract., Fact2: Cocaine constricts the blood vessels., Question: Cocaine causes what to contract? (A) layers of fat (B) a lot of human deaths (C) Walls of blood vessels. (D) harmful substances (E) the rest of the body (F) metabolic reaction (G) direct damage to the lungs (H) decreases its bodily water
[EX A]:
C