"A compound 'L' with the molecular formula C4H6O2 undergoes several chemical tests. Firstly, 'L' forms a pink coloration with Brady's reagent, suggesting the presence of a carbonyl group. When reacted with sodium metal, 'L' evolves gas, indicative of acidic hydrogen atoms. 'L' does not reduce Tollen's reagent, ruling out the presence of an aldehyde group. It also does not react with hydroxylamine, suggesting it cannot form an oxime. On catalytic hydrogenation, 'L' consumes two moles of hydrogen to form a compound 'M' with the formula C4H10O2. What is the most likely structure of compound 'L'?" A. Methyl acrylate B. Acetic anhydride C. Dimethyl fumarate D. Ethyl acetate