This is a test of commonsense with single/multi-choices. Complete the next sentence:

A girl is talking about fencing, she does it it for fun and sport. You see two people practicing inside of a building moving up and down trying not to get hit. there

Available options:
[a]. seems to be a certain way you move your feet for fencing, like a stepping pattern to move a certain way.;
[b]. are a few students that also do it takes them awhile to get it starting.;
[c]. are other people in the building as well, they also do the same thing.;
[d]. are marks and signs showing that they even scored some practice.;
The answer is:
[a].