TASK DEFINITION: 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". 
PROBLEM: [header] How to elevate your hand while sleeping [title] Sleep on your back or side. [step] In order to elevate your hand while you're sleeping, you'll need to sleep on your back or on the side opposite of the arm that needs elevation. This is the easiest resting position for elevating your hand. <sep> (A) [substeps] Lying on your side not only has been shown to help alleviate hand inflation, but it also improves circulation in and around the hand and wrist joints. It's also more efficient than sleeping on your side. (B) [substeps] You can use a pillow to support your arm when you start to feel like your hand's elevating off the ground. Place a rolled up towel over your head to help prevent air from pooling near your arm. (C) [substeps] Sleeping on your stomach won't allow you to elevate your hand as easily. It's much harder to prop it up from behind if you're lying flat on your stomach. (D) [substeps] Lie on your back with the pillow propping your head up at a 45 degree angle. Your dominant hand should support the bottom of your pillow.

SOLUTION: C

PROBLEM: [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.

SOLUTION: A

PROBLEM: [header] How to play flv files [title] Navigate to videolan's official website at http: // www.videolan. Org /. [title] Select the option to download the videolan vlc media player to your windows or mac computer. [title] Double-click on the installer file to launch the videolan installation wizard, and follow the on-screen prompts to install the media player on your computer. <sep> (A) [step] The application will launch automatically when installation is complete. [title] Click on " media " at the top of your videolan session, and select " open file. (B) [title] Run the installer file again using the install button. [title] Press " yes " to confirm installation process. (C) [title] Click the " save " button to finish installation. [title] Select a storage location to save the files you downloaded, and double-click " done " to close the system save wizard. (D) [step] You can leave the installer storage option unchecked while clicking on " new " to download the media player. [title] Click on " start uploader " and go to " run.

SOLUTION:
A