After we found the theater, we bought popcorn and took our seats.

what is the subordinate idea in the sentence?

took our seats
we bought popcorn
we bought popcorn and took our seats
after we found the theater

Which evidence supports the inference that nora is afraid of what torvald will say if krogstad tells him about her forgery? do it for my sake—for your own sake—for the children's sake." "you don't know what that letter can bring upon us." "yes, it's too late." "you will never have to do that."