单选题An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）AThree lights in a vertical line，the highest and lowest red and the middle white，and anchor lightsBThree lights in a vertical line，the highest and lowest red and the middle white，ONLYCAnchor lights ONLYDAnchor lights and sidelights ONLY
单选题
An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）
A
Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights
B
Three lights in a vertical line，the highest and lowest red and the middle white，ONLY
C
Anchor lights ONLY
D
Anchor lights and sidelights ONLY
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