Charted depth is the （）.<br>A:vertical distance from the chart sounding datum to the ocean bottom，plus the height of tide<br>B:vertical distance from the chart sounding datum to the ocean bottom<br>C:average height of water over a specified period of time<br>D:average height of all low waters at a place

Charted depth is the （）.
A:vertical distance from the chart sounding datum to the ocean bottom，plus the height of tide
B:vertical distance from the chart sounding datum to the ocean bottom
C:average height of water over a specified period of time
D:average height of all low waters at a place

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