Which set of configuration commands illustrates the correct configuration steps for a PPP over ATM Interface?（）

• A、interface atm 5/1.1 atm pvc 1 0 101 aal5autoconfig profile ppp generic autoconfig ip
• B、interface atm 5/1.1 atm pvc 1 0 101 aal5snap encapsulation ppp ppp authentication pap ip unnumbered loopback 1 ip access-routes
• C、interface atm 5/1.1 atm pvc 1 0 101 aalmux ip encapsulation ppp ppp authentication pap ip unnumbered loopback 1 ip access-routes
• D、interface atm 5/1.1 atm pvc 1 01 101 aal5snap encapsulation pppoa ppp authentication chap ip profile generic