A . [80×2925÷(1+17%)+20×2340÷(1+17%)]×17%=40800B . (80×2925+20×2340)×17%=47736C . [80×2925÷(1+17%)+20×(585+2340)÷(1+17%)]×17%=42500D . [80×2925÷(1+17%)+20×2340]×17%=41956
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