This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
All are sporicidal agents except ? 
Select and explain. 
A. Formaldehyde, B. Glutaraldehyde, C. Ethylene oxide, D. Isopropyl alcohol
D: Isopropyl alcohol
Answer: D: Isopropyl alcohol 
Explanation: Other disinfectants are used for destroying spores. Isoprpylalchohol is an antiseptic used mainly as skin disinfectant and act by denaturing bacterial proteins REF:Ananthanarayan & Panicker's Textbook of Microbiology 9th edition pg no:34