Which of the following gives ketone on oxidation?

Which one of the following gives a ketone on oxidation ?

Among the following given compounds. Which of the following compounds on oxidation gives ethyl methyl ketone?

Among the following given compounds. Which of the following compounds on oxidation gives ethyl methyl ketone?

Which of the following will give ketone with Grignard Reagent ?

Which alcohol does not give a ketone on oxidation-