Armand Contractually Agreed to Sell a Widget to Melanie for $100

Armand contractually agreed to sell a widget to Melanie for $100 000. However, she refused to accept delivery of the widget or to pay the contract price because the widget is really worth $80 000. Britt then offered to buy the widget from Armand for $80 000, but he rejected that offer. If Armand claims expectation damages, a court will order Melanie to pay him

A) $100 000.
B) $20 000.
C) $0.
D) $40 000.
E) $80 000.