You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

Ex Input:
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?  
 (A) There will be less water in the lake. (B) More plants will grow in the lake. (C) More frogs will live in the lake. (D) There will be fewer insects in the lake.

Ex Output:
D


Ex Input:
At a weightlifting competition, two competitors lifted the same weight to the same height. The second competitor accomplished the lift 2 seconds faster than the first competitor. This demonstrated that the second competitor had more  
 (A) energy than the first. (B) inertia than the first. (C) power than the first. (D) work than the first.

Ex Output:
C


Ex Input:
A grocery company found a way to keep fresh foods from spoiling when transporting them long distances. How might this new technology help people in Hawaii?  
 (A) by increasing the types of food available in stores (B) by decreasing the amount of food sold in stores (C) by increasing the time it takes to shop in stores (D) by decreasing the number of stores

Ex Output:

A