Instructions: 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.
Input: During a laboratory investigation, a student cracks a clean, empty Erlenmeyer flask. It does not break, but it can no longer be used. Where should the flask be placed?
(A) trash can (B) biohazard bag (C) broken glass bin (D) hazardous waste bin
Output:
C