Draw the ketone that is expected to be formed when the alkyne shown below undergoes the hydroboration-oxidation reaction.

Proposed ketone structure formed from the alkyne after hydroboration-oxidation.

Another proposed ketone structure formed from the alkyne after hydroboration-oxidation.

Alternative ketone structure resulting from the hydroboration-oxidation of the alkyne.

Final ketone structure derived from the alkyne via hydroboration-oxidation reaction.