Relative to the center, the start lies directly above and the endpoint directly left. The short arc is a 90° counterclockwise arc of radius 10, so G03 identifies **A**, the official answer. The printed choices repeat X/Y coordinates in one block; standard modal programming establishes the start separately, then commands G03 X10 Y10 R10. The source’s combined start/end notation is retained rather than presented as a valid portable CNC block.
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