Question

Which is not part of your immune system's response to a disease-causing organism?

Answers:
A. Vaccination
B. Recognition
C. Disposal
D. Immunity

My answer: D
Ms. Sue
Nope. Doesn't a person's immune system provide immunity?

Steve
I think you'd better reconsider your answer. Immunity is internal to the body. Which of the choices is external?
Suzy-- Su-Ji
I would say Recognition. @Ms. Sue @Steve
Ms. Sue
No. We've checked two of your answers. Now you're on your own.

Study your text and look up unfamiliar words in a dictionary.
Suzy-- Su-Ji
Okay, thank you for your help.