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 polish rocks [title] Choose the right rock. [step] You can polish any stone you wish, but there are certain characteristics of a stone that will make it easier to polish. If you want an easy stone to polish, pick a somewhat softer stone like onyx, limestone or calcite. <sep> (A) [substeps] You can polish diamond, granite or ceramic stones by cutting thin pipe holes or inserting dry mortar into one side of each hole. Look for a stone that resembles a diamond, but not necessarily a diamond. (B) Otherwise, a smoother, more pumice-like stone will be more difficult to polish. [substeps] Emeralds and equilateral manganese are both excellent mineral polishes. (C) Stones that are very hard will take a much longer time to polish. However, though hard rocks take a long time to sand, they yield more shine than softer rocks. (D) Softer rocks will actually work more well, and might look better to polish very old stones, but brighter stones tend to chip quicker. [substeps] Rubies, sapphires, and emerald are good options.
[A]: C


[Q]: A man combs his beard in front of a mirror in his bathroom. The man reaches down to pick up sizzors then trims his mustache. the man <sep> (A) kisses his mustache and looks still in the mirror. (B) sits in the bathtub to do shave then goes away to shower and change clothes. (C) picks up lotion which he applies to his neck. (D) shows off the trimmings.
[A]: C


[Q]: [header] How to apply for long term disability benefits [title] Read your policy. [step] If you have a private long-term disability policy and you've become disabled, your policy documents will explain the process for applying for benefits. [substeps] Your policy specifies the disabilities that are covered by your policy as well as how to file a claim. <sep> (A) There typically aren't any statutory deadlines on length and type of disability. For example, you may need to apply for an " assistance " disability if you're struggling to live on your own, or if you live in severe financial difficulties. (B) For example, if the community shelter you live in is able to provide disability assistance to blind and visually impaired individuals, you might want to look into switching to this policy. Since nondisabled people typically receive disability benefits in their homes, people with advanced disabilities may have access to disability coverage. (C) Make sure you are already seeing a doctor before you apply for benefits, since the insurance company will want proof of your disability and will need to review your medical records and discuss your impairment with your doctor. Look for the plan's definition of disability. (D) You may be entitled to educate yourself about the information that applies to you, before filing your claim. You also may be permitted to include your name, address, telephone number, or employer identification number.
[A]:
C