Well, my answer is A - Sakura.

Why ? Not only because she is pretty, she is also pretty as person. No matter how many time Sasuke hurted her or betrayed her, she is still in deep love with him and she knows what she wants - him. Someone may think she is *, he doesn't care about her(sometimes I find it pretty * too) but love is *. If you love someone like she loves Sasuke, you will do no matter what to protect him/her and also get his/her attention.

http://33.media.tumblr.com/948bc79ee6a9ab4ceec9cd92e68ad784/tumblr_mqcz8dbsv11r0fgqto1_500.gif


And come on, that name. What do you imagine as first when you hear word "Sakura". Beautiful pink tree ...

http://www.hotel-r.net/im/hotel/fr/sakura-21.jpg