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: heating salt water causes the water to evaporate while the salt remains, Fact2: Salt is produced by the evaporation of sea water., Question: how is salt produced? (A) flow of electrons (B) solid, liquid, gas (C) chemical messengers (D) Solutions (E) Physical weathering (F) It gets heated up (G) near the shoreline (H) heating water
[EX A]: H

[EX Q]: Fact1: webbed feet are used for moving faster through water by aquatic animals, Fact2: Animals move around, seeking their prey., Question: What do webbed feet help aquatic animals do? (A) rapid expansion (B) root growth (C) Catch prey (D) support (E) Regrows it (F) squeeze (G) Relieve pain (H) improve
[EX A]: C

[EX Q]: Fact1: a mold spore has a negative impact on the respiratory system, Fact2: From that time on, the respiratory system supplies the body with the oxygen it needs to survive., Question: What do mold spores have a negative impact on? (A) survival (B) cells (C) science (D) humans (E) mold (F) plants (G) Pollution (H) light
[EX A]:
A