Question

Which of the following needs a comma?

Clean up your area when you have finished.
Finishing includes cleaning up your work area.
When you have finished clean up your area.
Your area should be cleaned after you finish.

Answer 1

1) this is math
2) which one makes more sense
3) place a comma after every word until it makes sense
4) hope this helps
5) i think it's c, lol and I gave you all that help ;)