[It is winter. A bell rings in the hall; shortly afterwards the door is heard to open. Enter NORA, humming a tune and in high spirits. She is in outdoor dress and carries a number of parcels; these she lays on the table to the right. She leaves the outer door open after her, and through it is seen a porter who is carrying a Christmas Tree and a basket, which he gives to the maid who has opened the door.]

Nora: Hide the Christmas Tree carefully, Helen. Be sure the children do not see it until this evening, when it is dressed. [To the porter, taking out her purse.] How much?

Porter: Sixpence.

Nora: There is a shilling. No, keep the change. [The porter thanks her, and goes out. Nora shuts the door. She is laughing to herself, as she takes off her hat and coat. She takes a packet of macaroons from her pocket and eats one or two; then goes cautiously to her husband's door and listens.] Yes, he is in. [Still humming, she goes to the table on the right.]

–A Doll’s House,
Henrik Ibsen

Which inference about Nora does this passage best support?

THIS IS THE ANSWER> She is a very happy and thoughtful person.