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").

[Q]: Fact1: decomposition increases amount of organic matter in soil, Fact2: Fungi are involved in decomposition, as well., Question: What can help increase the amount of organic matter in soil?  (A) Fungi (B) mussels (C) pine (D) worms (E) animals (F) Enzymes (G) solutes (H) trees
[A]: A


[Q]: Fact1: Annelids have the amazing capacity to regrow segments that break off., Fact2: Annelids include earthworms and leeches., Question: What do earthworms do when a segment breaks off (A) Dies (B) Regrows it (C) Reproduces (D) Sediment (E) root growth (F) migrate (G) Stops growing (H) roots
[A]: B


[Q]: Fact1: adding salt to a liquid decreases the melting point of that liquid, Fact2: Salt particles come from the ocean as the spray of waves evaporates, leaving salt particles suspended in the air., Question: What can be added to a liquid to decrease the melting point of the liquid? (A) kinetic energy (B) energy of moving objects (C) Sulfur dioxide (D) fossil fuels (E) Chemical energy (F) activation energy (G) aqueous solution (H) Something from an ocean
[A]:
H