Juliet's nurse tells him that she is a Capulet after Romeo and Juliet exchange a kiss.
They have basic information such as birthdays, love lives, life events.
A biography means it was not written by the person its about, so when the narrator is speaking look for pronouns such as "he/she", because that means they are not talking about themselves.
Hope this helps!
-Payshence
Option C. don't
They (subject) is plural thus the don't "do not" (verb) must also be plural.