Given the task definition and input, reply with output. 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 reset hp 678 ink cartridge estimated ink levels [title] Make sure the contacts that are located on the cartridge (bottom side) are not broken. [step] The contacts are a very important part of the cartridge for use, and will be needed to reset the ink level. Your cartridge may vary from genuine hp 678 cartridges, or 3rd party cartridges or remanufactured cartridges. <sep> (A) [title] Contact hp 678 printing company to schedule a pin replacement regarding your cartridges. [step] If your printer is still available, you may have to contact hp 778 to have the machine refill the ink levels used to ink cartridges. (B) This method only works with genuine hp 678 cartridges. [substeps] When you go to the bottom side of the cartridge, there will be many contact points. (C) [substeps] If you have any questions you might be able to contact the u.s. department of manufacturing or your local customer service agency. (D) [title] Hold the cartridge up to a light to the same point that changes the ink level. [step] Make sure you are in the right place.
B