What are Disease-Causing Organisms Called

Question

What are disease-causing organisms called?
A) microbes
B) parasites
C) contagious
D) pathogens

Accepted Answer

Pathogens are disease-causing organisms such as bacteria, viruses, fungi, or parasites. Microbes, parasites, and contagious all have some relationship to pathogens, but none of them exclusively refer to disease-causing organisms.