How is the theme of "appearances can be deceiving" developed in "The Necklace"? Select the TWO correct answers.

A. Mathilde borrows a necklace from Madame Forestier because she thinks it is made of diamonds.

B. Mathilde is not rich, but she appears to be so when she borrows the necklace.

C. Mathilde ages after years of working hard to pay for the lost necklace.

D. Mathilde's husband is able to obtain an invitation to the ball, even though he is not rich.