In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to protect yourself from bad tenants with iscreentenants [title] Cover yourself with the protection of a lease. [step] Every tenant you lease to should have a copy of the signed lease agreement. Make rules very clear at signing and stick to them no matter what the situation. <sep> (A) You're in the business to make money, not be a homeless shelter. [title] Never make a verbal agreement with any tenant. (B) For example, don't leave your home without at least one copy. [substeps] If a landlord doesn't ask for copies, either take them to a local property office or exchange them for original lease. (C) [substeps] Poor landlords are increasingly encountering tenants with keys to their homes that you don't have. They might have to agree not to mail the keys to you. (D) [title] Notify the authorities as early as possible. [step] If the landlord violates a contract or protects someone else's property, or is otherwise interned by someone else, contact the police or arrowers 1 1-800-9011-1584.
A:
A