Supply costs at COVID 19 Corporation's chain of gyms are listed below: Client-Visits Supply Cost $28,377 March 11,660 April 11,456 $28,309 May 11,988 $28,485 June 13,300 $28,918 July 11,720 $28,397 August 11,206 $28,227 September 12,000 $28,489 October 11,691 $28,387 November 11,839 $28,436 Management believes that supply cost is a mixed cost that depends on client-visits. Use the high-low method to estimate the variable and fixed components of this cost. Compute the variable component first, rounding off to the nearest whole cent. Then compute the fixed component, rounding off to the nearest whole dollar. Those estimates are closest to: (Round your intermediate calculations to 2 decimal places.) Select one: a. $2.02 per client-visit; $28,398 per month b. $0.33 per client-visit; $24,529 per month O c. $0.37 per client-visit; $24,024 per month O d. $0.91 per client-visit; $17,471 per month