A Compound with Molecular Formula C₈H₁₄O₄ Exhibits a Triplet At \delta

A compound with molecular formula C₈H₁₄O₄ exhibits a triplet at $\delta$ 1.3 (I=6) ,a singlet at $\delta$ 2.6 (I=4) and a quartet at $\delta$ 4.2 (I=4) in its ¹HNMR spectrum.Its IR spectrum shows a strong absorption band near 1740 cm^-1.What is the structure for this compound?

A) I
B) II
C) III
D) IV
E) none of these