Compound C4H10O gave PMR spectrum consisting of two groups of lines (multiplets) with relative intensities in the ratio 3 : 2. Other compound of the same formula exhibited two lines with relative area of 9 : 1. What are these compounds.

• A. Diethyl ether and n-butanol
• B. t-Butyl alcohol and 1-Methoxypropane
• C. diethyl ether and t-Butyl alcohol
• D. Diethyl ether and 2-Methoxypropane