[单项选择]On chart，bearings to near objects should be used in preference to objects farther off，because（）.
A. a small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawn
B. all scales are kept updated for vital information by Notices to Mariners
C. the larger the scale of the chart，the greater the detail that can be shown on it
D. the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances

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