Q: 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".
A construction worker uses a handheld scraper to apply plaster to the bare floor. A worker places tiles onto the floor and uses plastic cross spacers in the groves. a heavy weight roller <sep> (A) blows a patch of plaster out onto the floor. (B) rises from the floor an sets off sparks around the plaster. (C) is placed on the floor and the roller is pushed apart with an elastic and strap. (D) is rolled over the newly placed tiles.
A:
D