Clark company is attempting to classify costs according to their cost behavior. Data associated with activity and cost are listed below.
  
 Which of the following correctly records the cost behavior for each of the following cost?
 

A. C

B. D

C. B

D. A

Sales Supplies Insurance Salaries & Wages Postage B. Variable C. Mixed D. Mixed January Fixed Fixed Fixed Fixed 1200 units $750 $900 $600 $300 Mixed Mixed February 1600 units Mixed Variable $830 $900 $700 Which of the following correctly records the cost behavior for each of the following costs?: Supplies Insurance Salaries & Wages Postage A. Variable $400 Mixed 2000 units March $800 Variable $910 $900 Variable $500 Variable