XYZ Company reported the following cost information: June July Cost A Cost B Costc Units sold $16,380 $55,440 $37,380 42,000 units $21,560 $89,080 $37,380 68, units which of the above costs would be classified as a mixed cost? Cost A Cost B O Costc O Both Cost A and Cost B are mixed costs all of the above costs are mixed costs none of the above costs are mixed costs