苯甲酸在酸催化下分别和CH3OH，CH3CHOHCH2CH3，CH3CH2CH2OH发生酯化反应，速度由快到慢排列的正确次序是
选项：

A:CH3OH>CH3CHOHCH2CH3>CH3CH2CH2OH;
B:CH3CHOHCH2CH3> CH3CH2CH2OH >CH3OH;
C:CH3OH> CH3CH2CH2OH >CH3CHOHCH2CH3;
D:CH3CH2CH2OH >CH3OH>CH3CHOHCH2CH3