You will be given a definition of a task first, then some input of the task.
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".

[header] How to do a deed search [title] Gather information on the property. [step] The street address is a good place to start, but you will also want to track down more specific information about the current owner, such as whether or not they are selling the property. [substeps] One good piece of information to get is the assessor's parcel number (apn). <sep> (A) It can be found on the document in question. Information about that parcel of property is probably relevant to pursuing investigation. (B) This is a unique number assigned by a tax assessor that contain particular information about the property. Depending on the location you are looking in, it may also be called the property tax or parcel identification number. (C) The apn is a detailed description of the property, which helps provide insight as to the value of the property. While real estate transactions are not regulated by the federal government, laws and ordinances are exceptions. (D) This is part of the real estate code just inside the property deed. If it's a rental property or a commercial property, then this is the parcel number.
Output:
B