问题：
[单选题]关于牛毛皴与披麻皴用笔特点的差别表述正确的是哪个？
Which is the right difference between "Niumao" and "Pima" style?
A牛毛皴用笔较披麻皴更为硬朗
the "Niumao" technique is more tough the "Pima" style
B牛毛皴为短线曲动用笔，较披麻皴更具松毛效果
the "Niumao" is mainly with short and curve brush movement, however, the "Pima" style is more fluffy in visual appearance
C牛毛皴为中锋用笔，披麻皴为侧锋用笔
"Niumao" style is working with center style of brush movement, "Pima" is mainly with side way in brush using
