Multi-select problem: How does the next paragraph end?

A man on the screen begins to describe a mop and bucket set that are used for cleaning floors. he

Choose your answer from: a. then begins to demonstrate how to use the mop and bucket set. b. sweeps the floors once more and returns back to speaking about how to clean them correctly. c. explains the yellow paint job he will be using on the floor. d. shows how the mopping flows into the sink and into a bucket.
a.