Which compound corresponds to the given infrared (IR) spectrum?

CH3CH2COOCH2CH3\text{CH}_3\text{CH}_2\text{COOCH}_2\text{CH}_3CH3CH2COOCH2CH3
HOCH2CH2COCH3\text{HOCH}_2\text{CH}_2\text{COCH}_3HOCH2CH2COCH3
CH3(CH2)4OH\text{CH}_3(\text{CH}_2)_4\text{OH}CH3(CH2)4OH
CH3CH2CH2COCH3\text{CH}_3\text{CH}_2\text{CH}_2\text{COCH}_3CH3CH2CH2COCH3