A video site in a park in an inland urban area requires equipment selection, and wired network resources have been covered. Now it is necessary to select the equipment of the video site. Which of the following selections is most suitable for?

A video site in a park in an inland urban area requires equipment selection, and wired network resources have been covered. Now it is necessary to select the equipment of the video site. Which of the following selections is most suitable for?
A . 1 ball machine, mains power supply switch access, upright pole in land area
B . 1 ball machine, mains power supply, switch access, pole in island area
C . 1 ball machine, solar powered, microwave access, pole in land area
D . 1 ball machine, mains power supply, microwave access, pole in land area

Answer: A