Compound R is propyl methanoate with higher boiling point than butanoic acid? Not enough information.

Steps:

• Identify compound R from molecular formula or structure (missing in query).
• Name R using ester nomenclature: alkyl alkanoate.
• Compare boiling points: esters vs. carboxylic acids based on intermolecular forces.
• Select option matching name and BP trend.

Why D is correct:

• Not enough information to confirm; esters typically have lower BP than acids due to weaker dipole-dipole forces vs. hydrogen bonding in carboxylic acids.

Why the others are wrong:

• A: Wrong name (methyl propanoate) and incorrect BP (higher, but esters lower).
• B: Correct name but wrong BP (lower, not higher).
• C: Correct name but wrong BP (lower, not higher).

Final answer: Not enough information.