Can ID+C be selected for whole building?

1. Minimum program requirement states that the LEED project should be defined by a clear boundary such that the LEED project is physically distinct from other interior spaces within the building.   I have limited experience in ID+С projects, but as I see MPR - it clearly requires other interior spaces, which are not LEED project within the building. So you can not qualify whole building as ID+С project. It's logical - the whole building must pursue under BD+C.  As I can see, i'ts more logocal to gain O&M for Existing Buildings, am I right?   2-3. I united both questions about faucets since if you would pursue for ID+C certification, you must be very precises and honest about LEED project bounderies and make an acurate descriptions of such bounderies in order to avoid gerrymandering - so if such faucets are crucial and obligate for functioning of your interiors - it must be included into project bounderies. Faucets outside the project boundaries are not included. 

This project is new construction of a building, so the appropriate rating system is BD+C. However, if the office tenants are responsible for their own fit ups, you can register the project as C+S and each tenant can register their office space as ID+C.

As I understood - an initial stakeholder that want the building to be certified is the owner (and this also some business strategy to attract tenants), but also good point.