Read the sentence from the last paragrap
Like all superheroes, immune cells will have to deal with super-villains.
What does the word "super-villains" in the sentence tell the reader?
(A) that foreign microbes are like enemies of the immune system
(B) that antibodies are like the heroes found in a comic book
(C) that viruses are like people who make bad choices
(D) that diseases are like scary television characters