Which of the following will allow a customer to have a PTZ camera automatically change between three predefined positions?

Which of the following will allow a customer to have a PTZ camera automatically change between three predefined positions?
A . Configure the camera’s I/O ports to control the preset positions
B . Use the Guard Tour capability to switch between the preset positions
C . Switch between the predefined positions using a joystick
D . Use the auto tracking capability to switch between the preset positions

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Answer: B