Refer to the exhibit. An administrator must configure interfaces Gi1/1 and Gi1/3 on switch SW11 PC-1 and PC- 2 must be placed in the Data VLAN and Phone-1 must be placed in the Voice VLAN. Which confi

Option A incorrectly assigns `switchport access vlan 20` to Gi1/3 for the data VLAN and entirely omits the `switchport voice vlan` command, failing to place the phone in the voice VLAN.

Option B is missing the `switchport voice vlan 20` command for Gi1/3, which means the phone would not be correctly assigned to the Voice VLAN.

Option C correctly configures Gi1/1 as an access port for data VLAN 10. For Gi1/3, it sets `switchport mode access` and `switchport access vlan 10` for the connected PC, and crucially adds `switchport voice vlan 20` to place the IP phone in Voice VLAN 20, allowing both devices to operate correctly on the single port.

Option D incorrectly assigns `switchport access vlan 20` to Gi1/1 for the PC and misconfigures Gi1/3 as a `switchport mode trunk`, which is inappropriate for connecting an end device like a phone and PC.