Pineridge Apartments is a 400-unit complex consisting of 120 one-bedroom units, 180 two-bedroom units, and 100 three-bedroom units renting for $900, $1280, and $1450 per month respectively. Currently, 5 percent of all the unit types are vacant, the propertys operating expense ratio is 30%, and the debt coverage ratio is 1.30. Determine the propertys monthly debt service. A. $353,254 B. $105,976 C. $247,778 D. $417,899