If a Landlord Can Get Everyone Out of the Apartment

If a landlord can get everyone out of the apartment building and refurbish it they

A) must still only charge the rent that they were charging before the repairs.
B) can charge whatever rent they want, and increase it whenever they want.
C) can charge whatever rent they want, but it then becomes controlled at a higher rent.
D) can only charge a refurbishing fee that is also controlled.