Q: 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 determine freight class [title] Learn the things that will determine the freight class of your item, including loadability and handling characteristics, weight, density, and the product's susceptibility to damage. [title] Determine the basic description of the freight being transported. [step] Be able to describe what material the item being shipped is made of. <sep> (A) A buyer must be able to show that an item shipped is " cheap " and common home-furnishings materials, while a seller must be able to show that it is unique and inexpensive before purchase. [title] Find inventories of freight classes by type. (B) For example, if it is made from brass or titanium, be able to detail the grade and durability of the material. If it is made from diamonds, be able to connect with the chemical components involved in the metal. (C) [title] Know what kind of container your item will be shipped in. [step] There are many different types of allowable packaging systems for freight including, but not limited to, pallets, drums, reels, crates, tubes, or bundles. (D) [substeps] Use a search engine to help you for examples of barcodes and adcurrencies, as well as mass and mass transit regulations. [title] Identify the class on which you are preparing the freight class.
A:
C