This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
Which one of the following disinfectant is effective in killing spores - 
Select and explain. 
A. Alcohol, B. Aldehyde, C. Halogens, D. Phenol
C: Halogens
Answer: C: Halogens 
Explanation: Halogens are potent bactericidal, fungicidal, sporicidal, tuberculocidal, and virucidal. Others are given are only slowly effective against spores. Park's textbook of preventive and social medicine.K Park. Edition 23.Pg no: 128