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: Evolution is a change in the characteristics of living things over time., Fact2: Trees are the largest of living things., Question: Evolution changes the characteristics of what over time? (A) the Moon (B) Man (C) life (D) trees (E) rocks (F) the Sun (G) humans (H) plants
[EX A]: D

[EX Q]: Fact1: if an object is made of a material then that object has the properties of that material, Fact2: An asteroid is a rock-like object with an irregular shape., Question: If an asteroid is made of a material then what does the asteroid have? (A) electromagnetic energy (B) that material's properties (C) that material's soul (D) that material's size (E) nothing special (F) Something to move (G) hard outer covering (H) visible energy
[EX A]: B

[EX Q]: Fact1: Hair is a fiber that is found only in mammals., Fact2: Hair is largely made of keratin, a protein that contains a lot of the amino acid cystine ., Question: What do mammals contain? (A) food (B) ghosts (C) keratin (D) Animal fur (E) magic (F) soul (G) alveoli (H) four limbs
[EX A]:
C