Most pathogenic species/disease affecting snakes

Answer: Option C

Most pathogenic species/disease affecting snakes is Salmonellosis.
The most common germ carried by reptiles and amphibians is Salmonella. Reptiles and amphibians often carry Salmonella bacteria in their digestive tracts. Even healthy reptiles and amphibians can carry the bacteria.
Almost all strains of Salmonella are pathogenic as they can invade, replicate and survive in human host cells, resulting in potentially fatal disease.