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 forward mail [title] Consider the ownership and responsibility of the package. [step] In the majority of cases, forwarding a single piece of mail is a very simple procedure. Postal services are used to rerouting mail as a way to accommodate changes of address and other changes of location. <sep> (A) Other delivery methods, like e-mail, modem, and cvs, refer to the ownership of the package and the responsibility of receiving it. If a package is defective, the recipient will be responsible for the cost of the replacement. (B) If the package belongs to someone else, it is considered courteous to ship it along to the intended recipient. If the package is addressed to you and you still wish to forward it however, you may be required to pay for a new set of stamps before it's valid for shipment. (C) They are the most reliable way to move relevant items to the appropriate location. [substeps] If you want to forward mail, you may only want to consider doing so if you are overseas or have moved to the continent very often. (D) The services typically use double-sided tape to' record' and' forward to' the post office box. [substeps] Address an address (e.g., " voisoco/sosoco " or " dadwell-tacouthawk ") to the post office box.
A:
B