I would completely remove those three branches you've indicated.
Judging by how high you have it potted in a pot that ought be be too deep, I'm guessing you've got a tap root or a mess of heavy roots from field growing. This would need to be addressed over the next several seasons, IMHO. I caution you against ground layering it because the roots will not be fed and will live only on stored starches - if layer roots do not appear in one season (and there is no guarantee they will), you'll likely loose your whole tree. Instead, you will need to progressively trim off the tap root over a few seasons; heavy lateral roots can be individually cut or ground layered each season. Meanwhile, your trunk thickens and/or you work on canopy development over the next few seasons.