QUESTION 3 The following data have been collected for four different cost items, Cost at 300 Cost at 720 Cost Item units units w $24,000 $31,680 $15,000 $ 15,000 Y $19,500 $27.300 Z $20,100 $ 25,740 Which of the following classifications of these cost items by cost behavior is correct? Cost W A) variable B) variable C) mixed mixed Choice A Choice B Choice C Choice D Cost x fixed fixed fixed fixed Cost Y Mixed Variable variable Mixed Cost z variable variable mixed mixed 0.00