The Private Investigation Firm of Watson & Holmes Is Conducting

The private investigation firm of Watson & Holmes is conducting an investigation for a wealthy movie star. The investigation is estimated to take 6 months to complete and will use $2,000 in supplies, $120,000 in labor, and $80,000 in overhead. Watson & Holmes' cost of capital is 12%. At the end of the sixth month, Watson & Holmes finds that the investigation will take an additional 2 months to complete and another $80,000 in labor and overhead. What are the additional financial holding costs for the 2 extra months on this project?

A) $4,840
B) $5,640
C) $8,880
D) $11,700