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 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 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: A tractor is driving down a path. It is using its scoop down in the snow. it <sep> (A) picks up snow but does not really carry it. (B) scoops the snow and puts it away. (C) is past a church with the exterior painted. (D) continues pulling the snow off of it's blades.

A:
B
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