Which of these is an example of an adaptive (or specific) immune response?

A.
A person's immune system responds to an insect bite by increasing blood flow to the area and causing it to become inflamed.

B.
A person's immune system recognizes that a bacterial infection is present and signals the hypothalamus to increase body temperature.

C.
A person's immune system recognizes viral particles due to a previous vaccine and creates antibodies to fight off the resulting infection.

D.
A person's immune system responds to dirt entering the eye by increasing tear flow and flushing the dirt out of the eye.