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: information in an organism 's chromosomes cause genetic traits to be passed down to that organism 's offspring, Fact2: DNA, which contains our genetic code, is the basic building block of chromosomes., Question: DNA causes what to inherit genetic traits? (A) offspring (B) some mammals (C) ancestors (D) Nematoda (E) heterotrophs (F) animals (G) minerals (H) grandparents
[EX A]: A

[EX Q]: Fact1: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Fishing pressure is relatively low due to a smaller human population., Question: What can make the bottleneck effect occur in fish? (A) increased habitat (B) acid rain (C) humans (D) Winter (E) increased food (F) storms (G) increased resources (H) Toxicity
[EX A]: C

[EX Q]: Fact1: evaporation can be used for separating a solute from a solvent in a solution, Fact2: For example, in salt water, salt is the solute and water is the solvent., Question: What could be used to separate salt from water (A) Condensation (B) engines (C) Evaporation (D) Sublimation (E) a delta (F) Precipitation (G) energy (H) Time and energy
[EX A]:
C