Say you own a 500-unit apartment complex. When the apartments are 90% occupied, monthly operating costs total $200,000, when occupancy dips to 80%, monthly operating costs fall to $197,000. A nearby manufacturing plant has just announced that it will close in three months. Since many residents will lose their jobs and move away, you fear occupancy may drop to 50%. If this happens, what do you expect your monthly operating costs to be? OA. $188,000 OB. $111,111 c. $213,500 O D. $173,000 O E. $168,800