In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
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Question: Which ingredient may cause chemical change? (A) almonds (B) milk (C) citrus juice (D) olive oil

Answer: C


Question: In a decade spring occurs (A) three times (B) twelve times (C) ten times (D) twice

Answer: C


Question: What is an example of humans building houses in a ecosystem and causing change in the environment as a result? (A) a dog house is placed in a fenced in back yard (B) a birdbath is placed in a park with a low squirrel population (C) a city is built over a park and deer lose their home (D) a small house is built in the forest and animals are fed there

Answer:
C