You work as a network Technician. A new workstation has consistently been unable to obtain anIP address from the DHCP server when the workstation boots. Older workstations function normally， and the new workstation obtains an address when manually forced to renew its address. What should be configured on the switch to allow the workstation to obtain an IP address at boot？（）
- AUplinkFast on the switch port connected to the server
- BBackboneFast on the switch port connected to the server
- CPortFast on the switch port connected to the workstation
- Dtrunking on the switch