You will be given a definition of a task first, then some input of the task.
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").

Fact1: a graduated cylinder is used to measure volume of a liquid, Fact2: Liquids Liquids Liquids are the second form of matter., Question: Graduated cylinders are used to measure the volume of the second form of what? (A) barrel (B) rain (C) light (D) matter (E) Water (F) speed (G) solutes (H) sound
Output:
D