Refer to the data for Cost A and Cost B provided below: Number of Cost per Unit Total Cost Units Produced Cost A 1 $10 10 $100 100 $1,000 1,000 ? $10,000 Number of. Cost per Unit Total Cost Units Produced Cost B 1 $5,000 10 $500 100 $50 1,000 $5 Which of the above best describes the behaviour of Costs A and B