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 tape measure is used to measure length, Fact2: All lengths shown are in inches., Question: What is used to measure inches? (A) A Greek letter (B) encoded information (C) a granulated cylinder (D) a tape measure (E) an external framework (F) a barometer (G) a hydraulic system (H) a graduated cylinder
Output:
D