补充112

补充112 Federal incentives now encourage investing capital in commercial office building despite vacancy rates in existing structures that are exceptionally high and no demand for new construction

a) investing capital in commercial office building despite vacancy rates in existing structures that are exceptionally high and

b) capital investment in commercial office building ,even though vacancy rates in existing structures are exceptionally high and there is

c)capital to be invested in commercial office buildings even though there are exceptionally hign vacancy in existing structures with

d)investing capital in commercial office building even though the vacancy rates are exceptionally hign in existing structures with

e) capital investment in commercial office buildings despite vacancy rates in existing structures that are exceptionally high, and although there is

正确答案B为什么不是D