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 clean a vornado fan [title] Clean out dust in the outer grills using a vacuum cleaner brush. [step] You can use a brush attachment on a vacuum cleaner to clean out all of the dust from the outer grills. Make sure the fan is unplugged before vacuuming. <sep> (A) [title] Place a cleaning rod in each section of the fan and squirt some cleaning fluid through each rod. [step] Avoid getting any grease in the vents or rest tray. (B) Some of the cleaner should be removed from the outside if you use a cloth and brush as cleaning instructions are laid out in the manual. [substeps] Avoid cleaning the outer grills with dust because it can detach some of the insulation and contribute to the fan's cooling. (C) Wipe down the inside of the cover every few minutes so you can put the fan back together. [substeps] For maximum efficiency, you should wash your vornado fan at least once a month, which is right after each dry run. (D) Go slowly when vacuuming to ensure you clean out as much dust as possible. [substeps] This will only clean the outer part of the fan, not the inside blades.

A: D
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Q: A man is standing inside a garage. He starts playing a saxophone. he <sep> (A) leans back and forth as he continues to play. (B) joins a man inside the garage. (C) sucks on the end of the saxophone as he continues to play. (D) leads a cat and a dog along as he plays.

A: A
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Q: [header] How to breed pugs [title] Examine your motivations for breeding. [step] When you begin thinking about breeding your pug, you need to make sure that you are breeding for the right reason. The real reason you should breed your pug is to improve the pug breed overall. <sep> (A) Before you jump right into breeding, identify those reasons for breeding your pug with a reasonable certainty: you want to breed your pug to become a better putter. There is no right answer to that question. (B) [substeps] This means that you want to breed your pug in order to produce more happy, healthy pug specimens. You should not breed pugs if you just want to make money or profit in any other way. (C) Uniqueness is far more vital in helping you breed your pug, than to breed him as a potential puppy. Therefore, it is important that you first understand your own potential for breeding your pug. (D) Fortunately, there are some people in your community who will donate their pug's egg for breeding. Think carefully before breeding your pug to make sure that you are capable of raising your pug properly.

A:
B
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