I hold publicly traded royalty for which I receive a 1099-MISC. Do these get counted as investment income from property I own or royalty income from my business?

I received a 1099-MISC with royalties under category 2 for stocks BPT, MARPS, and NRT.  TurboTax asks if the source of this income is from investment income from property you own or royalty income from your business.  Which do I select?

It is not my business and I do not own the physical property (but I do own stock in the trusts)