Which of the following statements about wings and engine lights is correct?
选项：

A:At any time, as lONg as the switch is turned on, the light will be on, and there is no time limit.
B:The WING switch is in the ON position, and when the No.2 door is opened, the engine light will go out automatically.
C:The WING switch is in the ON position. When the No.2 door is opened, both the wing and the engine lights are automatically turned off.