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 effectively use email at work [title] Allocate specific times of the day to read and respond to your e-mail. [step] If you don't stay in control of checking your e-mail, you may end up wasting too much of your work day checking it. Try to respond to emails immediately. <sep> (A) While you can use your email system to get more emails, remember to adjust your work email usage to accommodate any change in time. [substeps] Use social media to check your e-mail and read your e-mail. (B) [title] Organize your email whenever you are in it. [step] Effective use of work email includes deleting emails you know you won't need as you read them and filing those that you will need in specified folders. (C) Staying in control of your personal email should be your top defense when handling an in-office correspondence. [title] Identify your e-mail's subject line. (D) Or try to set an automatic schedule to read them at other times. [substeps] Plan to read at least once a day, unless you work on a busy schedule.

A: B
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Q: [header] How to sell dvds on amazon [title] Register for an amazon seller account. [step] Go to amazon's seller central site to sign up for a third party seller account. Fill out the registration form with your name, email address, and unique login password. <sep> (A) Once your account has been activated, you'll be able to sell your used items on amazon. [substeps] You may also be asked to provide some basic financial information, such as your debit card or bank account number. (B) Agree to the terms and conditions of the seller account and click on " register " at the bottom right of the page. You will receive your cd rental rights next to your name. (C) [title] Copy your dvd, videos, or files onto your home screen using the same link on the seller main page. [step] Make sure this link is easy to write and that your dvd is in a separate folder for storage purposes. (D) Most sellers will require you to provide a proof of registration and identification number before you can register. [substeps] If you don't yet have an amazon account, you can register this online or in person.

A: A
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Q: [header] How to treat polycythemia vera [title] Discuss aspirin with your doctor. [step] Aspirin can be used to reduce the risk of things like blood clots and strokes. Your doctor may want you to take a low dose of aspirin each day depending on your current health. <sep> (A) [substeps] Usually, aspirin is the first course of treatment. Doses are usually around 81 milligrams, but your dose may be lower or higher depending on your health. (B) For example, in the u.s., the standard dose of 3 milligrams for a week is 300 mg/day. Taking aspirin first thing will raise your blood sugars, increasing your chances of having a stroke. (C) Many generic aspirin products have preparations and instructions that vary. Always follow a doctor's advice when taking aspirin. (D) [substeps] Ask your doctor if aspirin is safe for you when you are pregnant or breastfeeding. Some doctors will advise you to use over the counter pain relievers, such as ibuprofen or acetaminophen or use aspirin sparingly.

A:
A
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