NTSE Stage 2 SAT 2014 Question Paper

An organic compound is a clear liquid having a molecular formula ${\mathrm{C}}_4{\mathrm{H}}_8\mathrm{O}$ . It has an open chain structure. Without any carbon-carbon double bond. The compound can be
(A) an alcohol
(B) an ester
(C) an aldehyde
(D) a ketone