What is the most likely reason that Mathilde picks the diamond necklace to borrow from Madame Forestier?
a) Mathilde admires the necklace the most among Madame Forestier's collection.
b) The diamond necklace is the most expensive piece Madame Forestier owns.
c) Mathilde believes the diamond necklace will enhance her beauty and social status at the party.
d) Madame Forestier insists that Mathilde borrow the diamond necklace specifically.