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

Tools sit on a table and we see a person unpack a bike and assemble it. We see the man put a tire on the bike. a person

OPTIONS:
(a). is applying a coat of plaster on the bike.
(b). turns it on and puts a catch into it.
(c). tightens the holds on the handlebars.
(d). takes the tarp off the bike.
(c).