Select from options: Continue writing the next sentence.

A slide of pictures shows performing a marching band and girls moving around. then

Available options:
(a). , marching bands play and girls perform holding flags.;
(b). , a girl performs piano exercises and standing walking, then she talks.;
(c). , all the people step in front of a court and three kids slide in the middle.;
(d). , a girl practice metal leg kick.;
Answer:
(a).