单项选择题

A.576/(10×60%)-576/10/12x4=76.8(万元)
B.576/(10×60%)/12×4=32(万元)
C.576/(10×60%)/12×4-576/10/12×4=12.8(万元)
D.576/(10×60%)-576/10=38.4(万元)