Which compound reacts with warm dilute aqueous sodium hydroxide?
C6H5CH3\text{C}_6\text{H}_5\text{CH}_3C6H5CH3
CH3CH2CH=CH2\text{CH}_3\text{CH}_2\text{CH}=\text{CH}_2CH3CH2CH=CH2
CH3CH2CH2NH2\text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2CH3CH2CH2NH2
CH3COOCH2CH3\text{CH}_3\text{COOCH}_2\text{CH}_3CH3COOCH2CH3