An administrator needs to connect servers to the Fiber Channel SAN. Which of the following should the administrator install in the servers to allow this connection?

A riser card provides physical expansion slots in a different orientation or location within a server chassis but does not provide networking or storage connectivity itself.

A Host Bus Adapter (HBA) is a crucial component that facilitates the connection between a server and a Fibre Channel Storage Area Network (SAN). The HBA handles the Fibre Channel protocol, allowing high-speed data transfer and communication with the storage devices on the SAN.

A SCSI card is used for connecting to SCSI storage devices, which is a different storage protocol than Fibre Channel and is typically used for direct-attached storage or older SAN deployments.

A SAS (Serial Attached SCSI) card is used for connecting to SAS hard drives or JBOD enclosures, utilizing a point-to-point serial protocol and is not used for connecting to a Fibre Channel SAN.