There Are Certain Rights and Duties That Exist Based on the Landlord

There are certain rights and duties that exist based on the landlord and tenant relationship. They generally exist even if not provided for in the lease. Which of the following is (or are) an implied right or duty even if not stated in the lease?​

A) The landlord makes an implied warranty of habitability.
B) The tenant agrees to request permission before allowing any over night guests to stay in the apartment.
C) The landlord agrees to not raise the rent without demonstrating that rent increases are necessity because the landlord has increased expenses.
D) all of the above