What is the term for the procedure used to eliminate microorganisms in water?

Explanation

A. Clumping (Coagulation) involves aggregating particles. B. Complete sterilization removes all forms of life but is not commonly used for water treatment. C. Disinfection refers to killing or deactivating harmful microorganisms in water. D. Settling (Sedimentation) is the process of allowing particles to settle out of water.