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". 
Input: [header] How to fold up a cosco high chair [title] Wipe the tray clean. [step] Clean any spilled food or drink off the tray with a soft, damp cloth. [substeps] Periodically clean the tray with soapy water and a clean, soft cloth to sanitize it. <sep> (A) Do not attempt to wash the tray in a dishwasher. Dry the tray with a clean towel after washing it. (B) If you can't wipe off the tray, you can wipe its surface with a clean microfiber cloth. [title] Remove the drawer from the right side of the chair. (C) [title] Lay the tray back down in its regular position. [title] Fasten the top, bottom, and back sides of the tray. (D) [title] Tip the tray upside down onto a clean paper towel to dry it. [step] For large people, this method of covering a large surface can be tricky.
Output:
A