You are presented with the quiz "Antibodies responds to molecules that the immune system recognizes as what to the body" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "antigens are molecules that the immune system recognizes as foreign to the body" and "antibodies respond to antigens by latching on to, or binding with, the antigens". 

So, what's the best answer to the question?


 

       foreign    