Acid-catalyzed dehydration of 3,3-dimethyl-2-butanol gives three alkenes: 2,3-dimethyl-2-butene, 3,3-dimethyl-1-butene, and 2,3-dimethyl-1-butene. Draw the structure of the carbocation intermediate leading to the formation of 2,3-dimethyl-2-butene.

• You do not have to consider stereochemistry.
• You do not have to explicitly draw H atoms.
• If more than one structure fits the description, draw them all.
• Separate structures with + signs from the dropdown menu.