单项选择题

CDU-C,CDU-D,CDU-F,CDU-G所含的合成器分别为()。

A.HCOMB,FCOMB,HCOMB,FCOMB
B.HCOMB,FCOMB,FCOMB,HCOMB
C.FCOMB,HCOMB,FCOMB,HCOMB
D.FCOMB,HCOMB,HCOMB,FCOMB