单选题You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.AWhite buoy with a green topBWhite and international orange buoyCYellow buoyDYellow and black vertically-striped buoy
单选题
You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.
A
White buoy with a green top
B
White and international orange buoy
C
Yellow buoy
D
Yellow and black vertically-striped buoy
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