Question

She is beautiful, ______?
aren´t it?
isn´t she?
doesn´t she?

Answer 1

She is beautiful, isn't she?

Explanation:

"Isn't she?" is the only ending that would make sense in this sentence. "Aren't it?", for one thing, is referring to an it, not a she. And "doesn't she?" is for a sentence when someone is asking or confirming something about the she.

I hope this helps!