Detailed 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".
Problem:[header] How to unstick a door [title] Examine the door with your eyes. [step] Look for scratches in the paint or any other noticeable damages to the door and frame. Also check for grime or any sticky buildup that may just need to be cleaned. <sep> (A) [title] Prepare a solution of equal parts paint and water. [step] In a commercial paint cleaning service, you will be sure to get the paint and water solution too. (B) Close the door and run your eyes along the gap between the door and the frame, noting places where the gap is very thin. [substeps] It is best to inspect an exterior door in a sunny or well-lit area. (C) You may find something stuck on the paint or insulation that your eye could not see. [substeps] Grime or sticky buildup that sticks to the door itself could indicate a disease or exposure to the elements. (D) [substeps] Use a rag or some newspaper to wipe down the door's exterior. This will help prevent streaks and scuffs.
Solution:
B