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
Drinking water is best made free of cyclops by - 
Select and explain. 
A. Filtration, B. Boiling, C. Chlorination, D. None of the above
C: Chlorination
Answer: C: Chlorination 
Explanation: Chlorine destroys Cyclops and larvae of guinea worms in a strength of 5 ppm. This high concentration of Chlorine gives an objectionable smell and taste to drinking water REFERENCE: PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE, 25TH EDITION, PG NO. 842