A small business with eight employees has just opened their office in a renovated loft in a busy downtown area. The owner of the building does not want to run any additional wiring beyond power, to preserve the historic nature of the building. Because of this stipulation, almost all tenants in the building have chosen to implement wireless. Which of the following should be the FIRST step in setting up this SOHO network?（）

A、Run a wireless site survey

B、Speak to tenants to determine their telephone standards.

C、Install and configure a Gigabit switch.

D、Determine the operating system versions.

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