Zas customer service department follows up on tuntomer complaints by telephone inquiry. During a recent period, the department tuted 6,000 calls and moured costs of $100.000 2.250 of these calls were for the company's whole real divisions coses allocated to the retail division should amount to O $7,500 O $112.500 O 347500 O $100.000 customer service department follows up on customer complaints by telephone inquiry. During a recent period, the department initiated 6,000 calls and incurred costs of $180,000. If 2,250 of these calls we any's wholesale operation (the remainder were for the retail division), costs allocated to the retail division should amount to 67,500 112,500 247,500 100,000