单项选择题

A.熟料+石膏+旁路窑灰+粉煤灰+炉渣
B.熟料+石膏+旁路窑灰+炉渣
C.熟料+石膏+旁路窑灰+粉煤灰
D.熟料+旁路窑灰+粉煤灰+炉渣