Answer:
C. transmits a pathogen to others without ever getting sick
Step-by-step explanation:
A disease carrier is an individual who is most times asymptomatic (show no sign or symptom) of a particular disease but has the potential to transmit to other people. A carrier is a person who is infected with a pathogen, but show no sign of the disease caused by the pathogen, because such individual is not affected by the pathogen, such person can be unaware and transmit to others; and on some occasions, they can show symptoms much later.
For example, some people are carriers of herpes virus, but show no symptoms and can transmit to others.