单项选择题

A.IDP-RRBE-PC-CTR-AC―CONNECT―ACR―ERB―RC
B.IDP-RRBE-CTR-DFC-AC―CONNECT―ACR―ERB―RC
C.IDP-RRBE―PC―DFC―AC―CONNECT―ACR―ERB―RC
D.IDP-RRBE―DFC-CTR-AC―CONNECT―ACR―ERB―RC