A technician is trying to load a device driver directly from the manufacturer’s CD for a PCI NIC. The operating system is Windows Vista. Windows refuses to accept the driver. Which of the following is the MOST likely cause of this problem?（）

• A、The driver CD is for Windows XP only.
• B、The technician needs to initialize the NIC first within Device Manager before installing a driver.
• C、The driver on the CD is not digitally signed.
• D、The driver is corrupt.