单项选择题

A.10%~15%、50%~60%、30%~35%
B.50%~60%、12%~15%、30%~35%
C.30%~35%、50%~60%、12%~15%
D.10%~15%、30%~35%、50%~60%
E.50%~60%、30%~35%、12%~15%