A company’s gross profit percentage on sales has decreased by 5% in 2002 compared with 2001.
  Which one of the following matters could have caused the decrease?
  A    The level of sales in 2002 is lower than that in 2001 B    There have been more bad debts in 2002 than in 2001 C     Inventory at the end of 2002 is lower than that at the end of 2001 D    Theft of inventory by staff and customers has increased.
  D
 
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