单项选择题

A.1537-(88C%+8Si%+4Mn%+30P%+25S%)
B.1537-(88C%+9Si%+5Mn%+30P%+25S%)
C.1537-(88C%+8Si%+5Mn%+30P%+25S%)
D.1537-(88C%+8Si%+5Mn%+30P%+29S%)