Please help ill mark brainliest if its correct.

Which citation is correct?

A - Keller writes, “The journey, which I remember well was very pleasant” (Keller 11).
B - Keller writes, “The journey, which I remember well was very pleasant (11).”
C - Keller writes, “The journey, which I remember well was very pleasant” (11).
D - “Keller writes, The journey, which I remember well was very pleasant” (Keller 11).