You are given a science question (hard-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.
Q: Which of these is a shared characteristic of unicellular and multicellular organisms?  
 (A) sexual reproduction (B) specialized cells (C) organ systems (D) waste production
A: 
D
You are given a science question (hard-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.
Q: Which of these is a shared characteristic of unicellular and multicellular organisms?  
 (A) sexual reproduction (B) specialized cells (C) organ systems (D) waste production
A: 
user
D
assistant
You are given a science question (hard-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.
Q: Which of these is a shared characteristic of unicellular and multicellular organisms?  
 (A) sexual reproduction (B) specialized cells (C) organ systems (D) waste production
A: 
D