Fact 1: Antigens are molecules that the immune system recognizes as foreign to the body.

Fact 2: Antigens prompt the body to produce antibodies.

Given the two facts above, answer the question "Antigens are molecules that prompt the what of antibodies?" with the following options: 
- termination
 - failure
 - humans
 - decrease
 - production
 - anemia
 - rapid expansion
 - kinetic


 

     production    