The Following Are the Book Values of a Firm's Debt

The following are the book values of a firm's debt as reported in its recent quarterly and annual reports: If it is now April 2008, what would be a good debt number to use if you are using this firm's
Debt to calculate a comparable market-value-of-equity/book-value-of-debt ratio?

A) $3,869
B) $1,217
C) $924
D) $3,789