单选题Navigational marks used for informational or regulatory purposes are（）.Asolid yellowBwhite with orange geometric shapesCred and white vertically-stripedDgreen and red horizontally-banded
单选题
Navigational marks used for informational or regulatory purposes are（）.
A
solid yellow
B
white with orange geometric shapes
C
red and white vertically-striped
D
green and red horizontally-banded
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