I would a like to know if both
"It's two months since they divorced" and
"It's two months since they have divorced"
are correct.

Thank you very much in advance!
Mod (Elena): Hi Guest. The rest of your message has been removed because we don't do homework (fill in the blank...choose the option a/b/c...), sorry, but you can rephrase it or pose the doubts you have in that exercise.
It's no homework, I'm just trying to figure out all of that by myself... Thank you anyway