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: We see an animated opening screen. A child washes and dry their hands leaving the water on which and adult turns off. we <sep> (A) see a boy record himself skating on the ice. (B) see a blue information screen. (C) see two people rinse their hands off as adults wash theirs. (D) see the kids wash their hands and leave the water.

A: B
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Q: [header] How to paint masonry walls [title] Remove any flaked or peeling paint from the masonry. [step] If the wall has already been painted, you need to remove any old paint that is loose, peeling, or flaking away. On an exterior wall, this is most efficiently done with a sandblaster. <sep> (A) New paint must be removed from the wall first, gently scraping around the edges with a rat-tail tail reciprocating scraper. This is most often done on exterior paint walls that are still meant to protect it from debris. (B) In areas where a sandblaster would be too messy and cumbersome, loose paint can be removed with a stiff wire brush and a paint scraper. [substeps] Failing to remove loose and peeling paint can result in the paint flakes mixing in with your fresh coat of paint and marring the finish. (C) [substeps] Make sure to turn off the water. Do not flush the wall down the drain. (D) If there is a paint-resistant paint strip still clinging to the wall, it may be painted to the wall as well, but not directly under it. [substeps] Using a sandblaster may be wise, but if the paint is not taking off, it may be better to start by sanding lightly.

A: B
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Q: [header] How to ease hip pain [title] Get a diagnosis before anything else. [step] It is really important to know what is causing your pain. See a doctor before you start doing any exercises or taking any medication. <sep> (A) Factors that make you nausea that you cannot work out help go back to the condition for which you were diagnosed. Once you understand the extent of the problem, consider mixing creams, vitamins, and/or supplements and trying to see if the symptoms continue to spread or become more severe. (B) There are many reasons your hip could be in pain, including arthritis, bursitis, or an injury you've got while playing a sport. Always ask your doctor what you should and should not be doing, given the cause of your hip pain. (C) Stopping the pain can increase your blood's oxygenation, which may help relieve it. [substeps] If you are nursing, you'll want to take it in a straighter, more relaxed way. (D) Some of the proper treatment options for hip pain include : [substeps] Back exercises, such as barbell squats. Cardio osteoarthritis including range of motion.

A:
B
****