Q: 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 circle graph can be used to display percents, Fact2: Percent is parts per hundred., Question: What can be used to display parts per hundred? (A) changes in size (B) antigens (C) a circle graph (D) an invisible graph (E) nothing (F) Surfaces and counters (G) melanin amount (H) an audio recording
A:
C