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: A "trend routing technology" logo appears on screen. "knife sharpening using a diamond bench stone" appears. two men <sep> (A) are inside a gyre sitting on a bench sharpening knives while women wait outside in the stands ready and ready. (B) finely sharpen knives using a long sharpening knife. (C) discuss, and one appears with a white " chinese slanting " stone. (D) demonstrate sharpening a knife using a honing stone.
Student:
D