Determine the Likely Structure for a Compound a (C₆H₁₀O),which Is $\delta$

Determine the likely structure for a compound A (C₆H₁₀O) ,which is found to decolorize bromine in carbon tetrachloride.Its spectral data is as follows: ¹H NMR IR
Triplet, $\delta$ 1.0 singlet, $\delta$ 2.4 2200 cm^-1 (sharp)
Singlet, $\delta$ 1.4 singlet, $\delta$ 3.4 3300 cm^-1 (sharp)
Quartet, $\delta$ 1.6 3500 cm^-1 (broad)

A) I
B) II
C) III
D) IV
E) V