Which of the Following Examples Best Demonstrates Species Resistance

Multiple Choice

Which of the following examples best demonstrates species resistance?

A) Certain strains of H1N1 virus infect both humans and pigs.
B) Certain strains of avian flu are transmissible between chickens, ducks, and other birds.
C) A worker at an animal shelter encounters a cat with Calicivirus, but cannot become sick with Calicivirus themselves.
D) A worker at an animal shelter encounters a cat with Calicivirus and infects their own cat at home after the cat is exposed to their work clothes.