Why not "The woman's paid by the bank"??? It was marked as incorect, when clearly it's not!
Thanks for the answer but I do not understand the meaning here. Is she being paid for a job she does at the bank or does the bank pay money from her account to her?
Without context, the sentence could mean either of your interpretations or even some other, perhaps. There are many such sentences on Duo and we hope that the learners will find them helpful when they are required or can use the vocabulary and/or grammar for other ideas. Of course, we aim to have logical and easy to comprehend material but it's not always feasible. Hope that little explanation helps and thank you for your comments.