Instructions: 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".
Input: [header] How to document a computer problem [title] Search for a key on your keyboard called print scr, prnscr, prtscrn or the like. [step] It is located above the " insert " key and to the right of the " f12 " key on a standard keyboard. It's location may differ on a laptop keyboard. <sep> (A) If you order typed abstracts from print, print partial abstracts, exact abstracts, there may be cheaper alternatives. [title] Click " file " in the ptscrn toolbar and click on the file. (B) [title] Identify the key that will shift after you move a task. [step] These keys are those which move the control pad up or down. (C) [substeps] If you want to capture the entire screen, hold down the " ctrl " key and hit the prnscr key or the corresponding key as mentioned above. If you want to capture just a window, first make sure the window is active. (D) Find your position by looking at the " how-to " box and " obtain " boxes. [title] Search for a key and press it.
Output:
C