Refer to the exhibit. What type of interface will connect the voice gateway router R1 to the analog phone and the fax machine?（）

• A、the analog phone will be connected to the FXS port， and the fax machine will be connected to the FXO port on router R1
• B、the analog phone will be connected to the FXO port， and the fax machine will be connected to the FXS port on router R1
• C、both devices will be connected to the FXS port on router R1
• D、both devices will be connected to the FXO port on router R1
• E、both devices will be connected to the E and M ports on router R1