单项选择题

A.脱颗粒百分率大于30%,组胺释放大于50%
B.脱颗粒百分率大于25%,组胺释放大于45%
C.脱颗粒百分率大于20,组胺释放大于40%
D.脱颗粒百分率大于15%,组胺释放大于35%
E.脱颗粒百分率大于25%,组胺释放大于15%