单选题A user reports that their onboard RJ-45 jack is damaged and will no longer function. Which of the following will provide this jack as an alternative to replacing the motherboard?（）AInstall a USB serial adapterBConnect to a USB hubCUse an external modemDUse an Ethernet card
单选题
A user reports that their onboard RJ-45 jack is damaged and will no longer function. Which of the following will provide this jack as an alternative to replacing the motherboard?（）
A
Install a USB serial adapter
B
Connect to a USB hub
C
Use an external modem
D
Use an Ethernet card
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