Teacher: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".
Teacher: Now, understand the problem? Solve this instance: [header] How to cover up a bad wall [title] Apply drywall mud. [step] Drywall mud is fairly easy to work with, and you can give the mud an interesting texture after putting it up to hide any imperfections in your wall. [substeps] Grab a bucket of ready-made drywall mud and apply it evenly over the surface of the wall with a 6-inch (15-cm) putty knife. <sep> (A) Apply this mixture with your putty knife in 4-to 5-inch (10-to 15-cm) rows at an angle. Apply more clay mixture once the second row has been applied. (B) Let the mud sit in the bucket for about 30 minutes so that the mud has time to form an adhesive. Look to see if there is any textured material left on the wall. (C) The texture should start to resemble turf, and you could even use wood chips if you wish. You can also purchase drywall mud to cover patio or garage windows with. (D) The coat should be between 1/8 and 1/4 inch (3 to 6 mm) thick, depending on the severity of damage. You can apply texture in a variety of ways.
Student:
D