Problems and exercisesAddition-cyclization reactions

Which carbonyl compound is obtained, after hydrolysis and decarboxylation, from the glycidic ester formed in the Darzens condensation of cyclohexanone with ethyl chloroacetate?

Carvone (an enone) is treated separately with dimethylsulfonium methylide and with dimethylsulfoxonium methylide. What type of product does each reagent give, and why are they different?