STRs - Schedule E, Vacation home or Commercial

[AJ D.]

I am trying to understand what a STR would be considered in terms of the IRS on Schedule E.
In my particular situation this is a true STR (average stay less than 7 days) I self manage the property and materially participate, and I do not stay at the property for personal use. 

For Schedule E - would this mean I select "#3 Vacation/short term rental" or "#4 Commercial" for the Property Type?