Of course, I prefer the current hairstyle to any of the three proposed.
But if I have to choose between the three hairstyles, I discard the first one which is more "A Wife and a Granny".
I'll go with B and the second one starting from the left. The most similar to actual hair.
But if I look closely, I also like C, specifically the second one starting from the right. It would be a radical change, she would become a brunette, but she is also very beautiful and has a more aggressive and lustful appearance.