单项选择题

下列物质中,沸点由低到高排列正确的是()。

A.CH3CH2NH2〈CH3CH2OH〈CH3COOH
B.CH3CH2OH〈CH3CH2NH2〈CH3COOH
C.CH3COOH〈CH3CH2OH〈CH3CH2NH2
D.CH3CH2NH2〈CH3COOH〈CH3CH2OH