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").
--------
Question: What does gravity cause substances on a planet? (A) things to move sideways (B) things to be moved upwards (C) things to descend to the lowest surface possible (D) things to stay in the same place

Answer: C


Question: Which would likely need a hot plate? (A) physics class (B) chemistry class (C) english class (D) math class

Answer: B


Question: If you scrape an object, small pieces or particles may break off of the object; what's an example of this? (A) rubbing an emery board across your nail (B) rubbing a cloth over a counter (C) using a towel after you shower (D) wiping your chin after drinking some milk

Answer:
A