The correct option is
C Physiological
Lysozyme is an antimicrobial enzyme produced by animals that form part of the innate immune system. Lysozyme is abundant in secretions including tears, sweat saliva, human milk, and mucus. The action of lysozyme is physiological as it is an antimicrobial enzyme which kills the bacteria. The enzyme functions by attacking, hydrolyzing, and breaking glycosidic bonds in peptidoglycan (cell wall) of bacteria.
So, the correct answer is 'Physiological'.