A Molecule or Particle Recognized by the Body as Nonself

Question

A molecule or particle recognized by the body as nonself is known as a(n) ____.​
A) ​antibody
B) ​antigen
C) ​complement
D) ​macrophage
E) ​phagocyte

Accepted Answer

The Answer is B

A molecule or particle recognized by the body as nonself is known as a(n) ____.​