单项选择题

A.25%~30%,55%~65%、8%~15%
B.8%~15%、25%~30%、55%-65%
C.55%~65%、45%~50%、8%~15%
D.50%~60%、10%~15%、25%-30%
E.25%~30%、8%~15%、55%-65%