A law firm hires a document-management firm to shred 800 old client files that are being stored in the law firm's file room. The document-management firm agrees to shred and dispose of the files for $2,500. The document-management firm fails to meet the deadline for performing the work, and the law firm hires another document-management firm to destroy the files at a cost of $3,100. Which of the following correctly describes the law firm's "expectation interest"? A) the law firm expectation interest is $2,500 B) the law firm's expectation interest is $ 3,100 C) the law firm's expectation interest is $600 D) the law firm's expectation interest is $0