Since the main purpose of the PVID is for VLAN-unaware devices, it is anticipated that frames exiting the port should be Un-Tagged. If the port connects VLAN-aware devices, then the user can edit the VLAN and return the setting to Tagged, causing the port to egress tagged frames for the VLAN.
All frames within the switch are tagged. Port-based VLANs are implemented by PVID settings. Untagged frames arriving at a port are tagged with the VLAN ID specified by the PVID of the port.
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C. The untagged traffic will be transmitted in vlan 50.