HELP PLEASE!!!!!!!!!!!!!
Which answer contains proper in-text MLA citation?
A. Frances Hodgson Burnett was described as "a stubborn, obstinate child" 3.
B. Frances Hodgson Burnett was described as "a stubborn, obstinate child."
C. Frances Hodgson Burnett was described as "a stubborn, obstinate child" (Robertson 9).
D. Frances Hodgson Burnett was described as "a stubborn, obstinate child" (9).