The correct option is D Baeyer-Villiger oxidation
Wolff-Kishner, Clemmensen and Wittig ylide reactions are reduction reactions. They will reduce carbonyls to hydrocarbons.
The Baeyer-Villiger oxidation is the oxidative cleavage of a carbon-carbon bond adjacent to a carbonyl, which converts ketones to esters and cyclic ketones to lactones. Peroxyacids like peroxybenzoic acid or peroxides are used as the oxidant.
Hence, the correct answer is option (d)