Multi-select problem: How does the next paragraph end?

In the gym, several young girls begin doing gymnastics and performing before coming back and doing an interview with the reporter. next

pick from the following.
[a]. , a group of young girls do a music stand.;
[b]. , a young man approaches the bars, does his routine, and then comes back to to his interview.;
[c]. , the young gymnasts perform with a baton and mostly leave the gym.;
[d]. , two other gymnasts come back and all begin doing leg hop and doing long back flips while doing a series of high springs and somersaults before coming back to the starting line.;
[b].