What happens next in this paragraph?

A middle aged man is standing in the street wearing rollerblades. The man precisely skates in-between a tight row of small cones. the man
Select from the following.
a). reaches the end of the row, turns around and runs back to the beginning.;
b). takes off at the end of the row.;
c). does a handstand after completing the course and goes back to the beginning.;
d). eventually stops skating and starts roller blading to a stop.;
c).