单项选择题
根据以下资料。回答下列题。
A.约36.8% B.约46.1% C.约29.69% D.约59.8%
A.降低了115.5% B.降低了55.5% C.降低了15.5% D.降低了105.5%
A.约8% B.约12% C.约25% D.约4%