9) Supply costs at Coulthard Corporation's chain of gyms are listed below: cliant-Viaits supply cost Management believes that supply cost is a mixed cost una upunu ... ....... isits. Use the high-low method to estimate the variable and fixed components of this cost. Compute the variable component first. Then compute the fixed component, rounding off to the nearest whole dollar. Those estimates are closest to: Note: Round your intermediate calculations to 2 decimal places. A) $1.92 per client-visit; $28,369 per month B) $.81 per client-visit; $18,612 per month C) $0.27 per client-visit; $25,165 per month D) $0.23 per client-visit; $25,670 per month