Answer: They usually run tests too see. For example, that's why they made blood tests. They take you blood from you, and run tests to see if you have a disease.
Explanation: Hope it helps!
I think the correct answer among the choices is option B. When antibodies are produced by lymphocytes, the body is conducting adaptive immunity. It is also referred to as acquired immune system. Adaptive responses are carried out be the white blood cells.
