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: Flash evaporators are used to make fresh water from salt water., Question: Doing what to salt water causes the water to become fresh water? (A) watershred (B) freezing (C) Regrows it (D) migrate (E) pouring (F) heating (G) cooling (H) erosion
[EX A]: F

[EX Q]: Fact1: building housing developments usually requires replacing animal habitats, Fact2: Habitat destruction is the primary cause of extinction or threat of extinction for all animals., Question: Building housing developments may cause  (A) eruptions (B) colder weather (C) disease (D) erosion (E) extinction (F) mutations (G) Destroy bridges (H) deforestation
[EX A]: E

[EX Q]: Fact1: boiling means change from a liquid into a gas by adding heat energy, Fact2: Boiling water produces steam., Question: What causes water to become steam? (A) Condensation (B) movement of tectonic plates (C) Increasing pressure (D) an engine (E) evaporation (F) heating liquids (G) Reducing temperature (H) Adding heat energy
[EX A]:
H