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 improve written communication [title] Take your audience into account. [step] It's important to choose the right words depending on your audience. For example, you should use formal language when sending an email to your boss or drafting a cover letter for a job application. <sep> (A) Adopting more formal language can help improve communication skills. [substeps] For example, you can even use the word " thank you " if the person you're writing for is a supervisor in your company. (B) Save your informal language, such as beginning an email with " hey, " for close friends and family. [title] Explain unfamiliar concepts, terms, and data when necessary. (C) Getting your audience's attention is very important, so your writing should reflect that. However, you can also try using the tongue twister. (D) But, when spelling words out loud, you should have written them out in vivid and concise terms. Even with proper grammar, try to be respectful of the audience.
B