Either A, B, or C. D seems a bit slutty, and if not slutty, then she is probably self- absorbed. Id probably be more likely to approach A or C though. B just seems a bit unapproachable, I don't know why. A seems just normal, or a bit that she doesn't care as much about her looks which is attractive to me. And as for C, I've always been a bit more attracted to 'emo' girls, because they just seem so broken and fragile and that they would depend on me to make them happy again; but from experience, sadly it always ends up one of these two things: 1. I fail to make her happy, as she is moping and sulking all the time or 2. I do make her happy, and 'fix' her, but then she realizes she doesn't need me anymore and leaves me.
So that's why i would probablu go with A- to avoid the type of girl that has broken my heart time and time again.