下列哪组肺功能测定结果最有助于慢性阻塞性肺疾病的诊断
AFEV/FVC%<75%,FEV/preFEV>60%
BFEV/FVC%<75%,FEV/preFEV>85%
CFEV/FVC%<80%,FEV/preFEV>85%
DFEV/FVC%<80%,FEV/preFEV>8026
EFEV/FVC%<70%,FEV/preFEV>80%
AFEV/FVC%<75%,FEV/preFEV>60%
BFEV/FVC%<75%,FEV/preFEV>85%
CFEV/FVC%<80%,FEV/preFEV>85%
DFEV/FVC%<80%,FEV/preFEV>8026
EFEV/FVC%<70%,FEV/preFEV>80%