torvald [calls out from his room]. is that my little lark twittering out there? nora [busy opening some of the parcels]. yes, it is! torvald. is it my little squirrel bustling about? nora. yes! torvald. when did my squirrel come home? nora. just now. what inference can you make? a. torvald treats nora like a child. b. nora is a squirrel. c. nora makes noise like a bird. d. torvald was worried about where nora was.