Please circle the one or ones that would be the answer to what they are asking for and please explain it.

2-methyl-2-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. - Indicate the method of preparation by drawing either BH3 (for hydroboration-oxidation), or Hg (for oxymercurationreduction), 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 oxymercurationreduction can be used, just give the structures for one method. - Separate structures with + signs from the drop-down menu