Multi-choice problem: Continue writing the next sentence in this paragraph:

He is using a polishing sponge to polish the table top surface in circular motion. He then goes in up and down motion over the table surface to make it shiny. he

OPT:
[a]. cleans the edge of the table surface one side first as well as from underneath and underneath.
[b]. also dries everything with the coat to be shiny.
[c]. meticulously goes over the entire surface making sure no part of the table is left untouched.
[d]. then dances softly as he's polishing the table.
[c].