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".

Example Input: . a box of matches and a can of gasoline <sep> (A) are shown on a bedding of straw. (B) are on a kitchen counter. (C) is shown as well as a pan and a piece of paper poking through the paper. (D) sits beside an orange carton of a liquid.
Example Output: A

Example Input: [header] How to install debian [title] Back up any important files on your computer. [step] Installing debian on your machine will clear your entire hard drive and reformat it, erasing all data in the process. Store your important information on a removable drive before beginning the installation. <sep> (A) [title] Navigate your web browser to the debian website. [step] Debian is distributed through www.debian. (B) [substeps] If you don't own one, ask a sales associate at your bank to store your files in your. Otherwise, you can install them on your own hard drive. (C) [title] If debian has dependency on your operating system in the previous step. [step] Some debian programs allow for debian to be connected to external storage like the usb connector, vertical port or the simplest root driver. (D) [substeps] Make sure to click the " save/install " button right on the back of the removable drive. [title] Locate and modify the " reason for installing debian " website.
Example Output: A

Example Input: [header] How to quiet a noisy fan belt [title] Ensure your vehicle is equipped with a neoprene belt. [step] Most modern vehicles have a serpentine belt instead of a fan belt, though the names may be used interchangeably. Older model vehicles and some high performance applications still utilize fan belts instead of electric fans. <sep> (A) Older belts were made of neoprene and would benefit from the application of belt dressing, but newer epdm-made belts may dry out as a result of using belt dressing. [substeps] If your fan belt was installed after the year 2000, it is likely an epdm-made belt. (B) [title] Press the automatic button at the top of the belt. [step] The automatic button will unlock the vehicle door. (C) [title] Position the fan on top of the vehicle's hood. [step] Adjust your fan to an upright position, resting it against the left side of the vehicle's trunk. (D) To save money, consider purchasing a larger serpentine belt instead of one manufactured with automatic or multifunctional fan belts. [title] Close all windows and doors in the vehicle.
Example Output:
A