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: global warming is when worldwide temperature increases, Fact2: Global warming is caused by carbon dioxide trapped in the atmosphere., Question: What does carbon dioxide cause? (A) skateboards (B) Greenhouse gases (C) Worldwide temperature increase (D) major threat to health (E) direct damage to the lungs (F) running (G) a lot of human deaths (H) Temperature decrease
[EX A]: C

[EX Q]: Fact1: crumple means change shape from smooth into compacted by physical force, Fact2: Density increases with depth due to compaction and progressive cementation., Question: Crumple means_ increases by physical force. (A) threatened (B) mass (C) an object (D) density (E) movement (F) weight (G) volume (H) It expands
[EX A]:
D