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 tell how hot your computer is [title] Reboot your computer. [step] Press the appropriate setup key as the computer is booting. You can see the key displayed when the manufacturer's logo appears. <sep> (A) [title] In the search bar, type google and press enter. [step] There will be a list of key properties available. (B) [substeps] If the computer appears to be running in default mode, see reboot for more information. [title] Check the temperature of your control panel. (C) [title] Find your current computer's hard drive. [step] While it's common for aol to reboot computers, you may need to boot another system. (D) Common keys are f2, f10, f12, and del. Pressing this key will open your computer's bios menu.
Output:
D