
| Deck : General Navigation - 204/2138 |
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| In the U.S. Aids to Navigation System on the Western Rivers, a preferred channel buoy to be left to port while proceeding downstream will __________. |
| A) have the upper band red |
| B) show a red light if lighted |
| C) have a characteristic of composite group flashing if lighted |
| D) All of the above |
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