This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
High level disinfectant are used for: 
Select and explain. 
A. Stethoscopes, B. Electronic thermometers, C. Bronchoscopes, D. Surgical instruments
C: Bronchoscopes
Answer: C: Bronchoscopes 
Explanation: Ans. is. 'c' i. e., Bronchoscopes