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 ask survey questions [title] Understand your objective. [step] Make sure you know why you are asking questions in the survey. Having a firm grasp of this will help you make better questions. <sep> (A) Without knowing your objective, your questions may seem aimless. [substeps] Try to answer the questions: who, what, where, when and why for yourself. (B) [substeps] However, you may not have a completely clear and accurate understanding of your evaluation topic. You may need the fact-figure accuracy to have a clear and reliable assessment. (C) You can additionally foster a good relationship between you and the question that came up. [substeps] Once you have developed a rapport with the question, you should begin addressing it. (D) [substeps] Determine whether the survey may be a waste of time. If the survey results in a huge number of questions, it will be better for you to leave some questions blank or to completely miss the question's significance.

A: A
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Q: A mini pool table has a set of colorful pool balls set up in the middle in a triangle shape and the white ball is alone. a man <sep> (A) walks into the pool room wearing an orange swimsuit and begins playing with the ball as a lot of people are standing around by the pool. (B) approaches the mini table, touches the white ball and moves it into position to hit it with the pool stick. (C) is talking to the camera and showing various machine that appear to be emergency preoutfits. (D) of average height, wearing a blue shirt and glasses competes pool holding a rubik's cube on his right hand, a current type of swiffer machine machines sitting on a mat with two wheels to help you.

A: B
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Q: [header] How to set up a fish tank for plecostomus catfish [title] Buy the right size tank. [step] Pleco catfish can be large, so it's important to have a tank big enough for their size and how many plecos you want to have. Plecos can be up to 15-24 inches long when they're fully grown. <sep> (A) Terrariums can be purchased at aquarium stores, from vendors, and online. [substeps] Terrariums are made of highly porous material and provide the best setup for plecos. (B) [substeps] Your tank should ratio should be 1 gallon of water for one inch of fish. Pleco catfish live for 20-30 years, so it will take them awhile to reach their full grown size. (C) They require lots of space in the tank and they can be pretty aggressive. A small 10 gallon (25 l) tank with at least 12 rows of plecos can also work. (D) Choose shallow water to accommodate your plecos, as they have a lot of space to move around. [substeps] Make sure the tank isn't deep enough for your plecos' heads to go under.

A:
B
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