Madame Loisel's actions expose her greed and vanity.
What happened to Madam Loisel?
Madame Mathilde Loisel in the story - The Necklace, is depicted as a character from a humble background.
In chapters 6-11, the night of the party, she is completely enthralled at the experience of mixing with wealthy people.
Soon she forgets that her clothes and necklace are borrowed, then she becomes greedy which leads to her fate.
The correct answer thus is B.