【单选题】You purchase a new computer system that does not have wireless capability, and then you decide that you want to use a wireless connection to the Internet. What are the least expensive ways (pick two) ...
A.
Purchase a second computer that has wireless
B.
Purchase a wireless expansion card and install it in your system
C.
Trade in the computer for another computer that has wireless installed
D.
Purchase a USB wireless adapter and connect it to your PC by way of a USB port