On small scale charts of ocean areas where hydrographic information is，in many cases，still sparse，charted shoals may be in error as regards______．A.positionB.position，depth and extentC.depth and extentD.position and extent
On small scale charts of ocean areas where hydrographic information is，in many cases，still sparse，charted shoals may be in error as regards______．
A.position
B.position，depth and extent
C.depth and extent
D.position and extent
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