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
All the following are sporicidal agents except 
Select and explain. 
A. Autoclave, B. Formaldehyde, C. Ethylene oxide, D. Alcohol
D: Alcohol
Answer: D: Alcohol 
Explanation: Alcohol acts on bacteria fungi and some enveloped viruses but not spores.