Which quote is properly formatted?

It will use the following information -

direct quote - She is pretty

Joseph Conrad

page 82

a
"She is pretty," (Conrad 82).
b
"She is pretty," (Joseph Conrad 82).
c
As stated in the text, "She is pretty," (Conrad 82).
d
As stated in the text, "She is pretty." (J. Conrad 82).

b

"She is pretty," (Joseph Conrad 82).