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 buy an ink cartridge [title] Look online. [step] On-line ink stores can also be a time saver, allowing you to look at your printer from home to insure that you purchase the correct cartridge. [title] Consider name products or compatible products. <sep> (A) [step] For simple print printing, it's vital that manufacturers explain each brand. But printing on a brand name section may simplify editing. (B) [step] If you want a brand name ink cartridge, you should opt for specific brand names. For example, colorlers and printers might want a name brand ink-bottomed printer with ink cartridges that are compatible with their computers. (C) [step] Discount ink and toner cartridges allow you to save money printing at home while getting high quality print outs. While most discount printer ink cartridges are of good quality, there are exceptions and quality will vary. (D) [step] If you're buying a watercolor cartridge for a gun or awning, you will probably want a different name than using the same one over and over. There are a number of different brands, including cakeshop, watercraft, and line.
C