Business & farm

Thank you for your help. I have another question. TT asks to choose what type of activity the LLC engaged in - my choices are 

Business, rental real estate, other rental, other or This K-1 reports amounts in more than one of boxes 1,2,3. To me the logical answer seems to be "other." While he was 1/3 owner of his parents' home, it was never rented. Also, we didn't really operate a business, so in my opinion it seems like the best choice is other.  Does that seem right? TIA