is the final product obtained when one of the following is reacted with base :

is the final product obtained when one of the following compounds react with base. Which is the compound?

4-hydroxy-4-methyl-2-pentanone is obtained when one of the following is reacted with base. The compound is

The final product obtained in the reaction

The final product obtained in the reaction

The final product obtained in the reaction

The final product obtained in the reaction

The final product obtained in the reaction