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 drop-down menu.