单项选择题

A.XFG,YFG;PORX,PORY;C1X,C1Y
B.XFG,YFG;C1X,C1Y;C2X,C2Y
C.XFG,YFG;C1X,C2Y;PORX,PORY
D.C1X,C1Y;C2X,C2Y;PORX,PORY