A Colleague's Computer Has an Integrated Sound Card That Your

Multiple Choice

A colleague's computer has an integrated sound card that your colleague wishes to upgrade. They install a new graphics adapter using a PCIx bus, but when they plug speakers to the new adapter, it does not work (even during boot up) . Which step did this colleague forget?

A) To install the Graphics Adapter device drivers.
B) To disable the PCIx sound card.
C) To install the latest Windows service pack.
D) To disable the onboard sound card.