Transmission of infectious pathogens can occur by which of the following: A. People and animals
B. Contaminated objects
C. The environment
D. All of the above

D.) All of the above.

Explanation:

Infectious pathogens can be transmitted through lots of things, such as people and animals, other contaminated objects, and the environment.

So the answer is D.) All of the above.

if you are on the computer you can not take a picture but you can upload one but i am not sure about phones but i'm pretty sure it's the but to upload one just click the paper clip looking thing/ link thingy thing and upload a pic