You will be given a definition of a task first, then some input of the task.
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".

[header] How to clean a felt hat [title] Brush it with a hat brush. [step] Use a hat brush to remove dust and dirt from the surface of your hat. Gently brush the hat counterclockwise, starting at the front and working your way all around. <sep> (A) Be sure to brush in the same direction consistently. [substeps] Purchase a hat brush in a hat store, or online. (B) Get the entire fabric, including the brim, out of the way before you get on to cleaning it again. [substeps] Many felt hats feel wody as you brush. (C) Be careful not to brush too hard as you don't want to damage the hat's lining. Allow the hat to dry completely before moving on. (D) The goal is to softly sweep away debris from the surface. [title] Spray your hat with a spray head washer.
Output:
A