Which of the following statements regarding waterborne pathogens is incorrect?

A) Waterborne pathogens include bacteria, viruses, and protozoans.
B) Waterborne pathogens are primarily Campylobacter, Salmonella, Shigella, Vibrio, and Mycobacterium.
C) Encysted protozoans can survive in water for long periods without a human host.
D) Microbes can enter surface water through ordinary exposure to air and soil.