possible Goldberg Company, a manufacturer of small appliances, had the following activities, allocated costs, and allocation bases: Activities Allocated Costs Allocation Base Account inquiry (hours) $63,000 2,400 hours Account billing (lines) $33,000 20,000 lines Account verification (accounts) $18,000 30.000 accounts Correspondence (letters) $13,000 1,600 letters The above activities are carried out at two of its regional offices Activities Northeast Office or Account inquiry (hours) Account billing (lines) Account verification (accounts) 180 hours 10,000 lines 1,500 accounts Midwest Office 300 hours 9,000 lines 600 accounts be OA. $8.13 OB. $0.60 OC. $26.25 OD. $3.15