What is the most logical next event?

A woman watches girls practice in a gym. The girls take turns doing high kicks and cheers. then the girls

OPT:
(a). kick and cheer in unison..
(b). jumps threw high five as the coach congratulate them for good sportsmanship..
(c). of the previous team begin returning the high kicks..
(d). takes turns jumping off and caps her runs, and does her routine..
(a).