单选题Web users are reporting issues downloading various types of media. Which of the following shouldthe administrator do FIRST?（）AFind out what has recently changed on the networkBCreate an action plan and solution identifying potential effects.CContinue to gather information and see what other problems may exist.DDetermine the most probable cause.
单选题
Web users are reporting issues downloading various types of media. Which of the following shouldthe administrator do FIRST?（）
A
Find out what has recently changed on the network
B
Create an action plan and solution identifying potential effects.
C
Continue to gather information and see what other problems may exist.
D
Determine the most probable cause.
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