I think my hair looks fine. My mother believes it needs a little more brushing.

A Not only do I think my hair looks fine, but my mother also believes it needs a little more brushing.

B I think my hair looks so fine that my mother believes it needs a little more brushing.

C I think my hair looks fine, but my mother believes it needs a little more brushing.

D Either my mother believes it needs a little more brushing or I think my hair looks fine.