Final answer:
An individual who is infected with pathogens but has no symptoms is known as an Asymptomatic Carrier, capable of transmitting the disease without being aware of the infection.
Step-by-step explanation:
An individual who is infected with pathogens but shows no signs of illness is called a b. Asymptomatic Carrier. This type of carrier can transmit the pathogen to others without showing any symptoms of the disease themselves. Certain infections may be asymptomatic or subclinical, and an individual may not be aware they are carrying the pathogen. For instance, most individuals infected with the herpes simplex virus remain asymptomatic. It is essential to understand the role of an asymptomatic carrier in the spread of infectious diseases to prevent and control outbreaks.