Consider three buildings in an office submarket. Building 1 has 450,000 SF of which 36,000 SF are vacant, Building 2 has 220,000 SF of which 63,800 SF are vacant, and Building 3 has 170,000 SF of which 34,000 SF are vacant. Based on this information, what is the vacancy rate using the simple average method? O 16% O 17% O 18% 19% 20% Consider three buildings in an office submarket. Building 1 has 450,000 SF of which 36,000 SF are vacant, Building 2 has 220,000 SF of which 63,800 SF are vacant, and Building 3 has 170,000 SF of which 34,000 SF are vacant. Based on this information, what is the vacancy rate using the simple average method? O 16% O 17% O 18% 19% 20%