In "The Necklace," how does Mathilde's social status help develop the plot?

A - Mathilde's social status leads her to borrow the necklace to appear that she has wealth.

B - Conflict grows between Mathilde and her husband because Mathilde wants the family to be of a higher social status.

C - Concern over Mathilde's social status leads Madame Forestier to allow Mathilde to borrow the necklace.

D - Mathilde and Madame Forestier come into conflict because the two women come from different social backgrounds.