What are various functions of Nora's conversation with Mrs. Linde in Act 1? Consider it from these perspectives:
(a) the exposition of prior events and the definition of Nora's dilemma;
(b) further revelations of Nora's character, both in the past and during the conversation;
(c) the insight into herself that Nora gains from Mrs. Linde's history;
(d) definitions of legal and moral standards of the time indicated by the prior actions of both women.