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").

Input: Consider Input: Humans contribute to environmental pollution (A) by purchasing products made from recycled products (B) by switching to energy efficient appliances (C) by leaving behind refuse on public beaches (D) by frequently recycling paper and plastic

Output: C


Input: Consider Input: Which is most accurate? (A) dams can capture powerful gusts and harness their power (B) windmills can capture lightning bolts and harness their power (C) dams can capture lightning bolts and harness their power (D) windmills can capture powerful gusts and harness their power

Output: D


Input: Consider Input: A boy puts some vinegar in a glass of some bleach and finds (A) both are frozen (B) bother taste good (C) both are dry (D) both are adjusted


Output: D