Rental Available Date vs Landlord move out date

I have a rental that I converted from my primary residence.

 

The unit was put up for rent in 10/1/2018 with a realtor.  The new tenant moved in on 12/1/2018. From the time the unit was available for rent until the day before the new tenant moved in, I occupied the unit.

 

When I deduct mortgage interest, condo association fees, insurance & taxes should it be for:

 

A.  The one month that the tenant lived in the unit

B. The date the unit was available for rent?  3 months deductible expenses.