Compound M is a secondary alcohol with a formula of C₄H₁₀O. Compound M can undergo dehydration by heating with a strong acid to produce compound N with a formula of C₄H₈. Compound M can also undergo oxidation to produce compound L with a formula of C₄H₈O. What are the IUPAC names and condensed structural formulas for the compounds M, N, and L?

• A.
• B.
• C.
• D.

Answer: (D)