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
Glutaraldehyde is preferred more than formaldehyde because: 
Select and explain. 
A. It has got more bactericidal activity, B. It has got more bacteriostatic activity, C. It has got no deleterious effect on the cement and lenses of instruments, D. Its application is easier
C: It has got no deleterious effect on the cement and lenses of instruments
Answer: C: It has got no deleterious effect on the cement and lenses of instruments 
Explanation: None