2-methyl-1-hexanol was prepared by reacting an alkene with either hydroboration-oxidation or oxymercuration-reduction. Draw the structure of the alkene that was used to prepare the alcohol in highest yield.
You do not have to consider stereochemistry.
You do not have to explicitly draw H atoms.
Indicate the method of preparation by drawing either BH3 (for hydroboration-oxidation), or Hg (for oxymercuration-reduction), in a separate sketcher.
If there is more than one alkene that can be used for a given method, draw all of them.
If either hydroboration-oxidation or oxymercuration-reduction can be used, just give the structures for one method.