Nancy Drew.
Agree with GoodOldEmmaNess who said Basically, tell me the sort of answer you want and Slipknotted who said This quiz was written by a non-reader who doesn’t have a lot of experience.
Also, since when did JK Rowling become "a literary figure" which, in the context of the quiz, seemed to mean "a fictional figure" as she was included with the Girl in Gone Girl, Nancy Drew and Miss Marple (yes, I have tendency to take things too seriously; that's Nancy for you, it seems).