MegaRock produces quick setting concrete mix. Production of 208,330 tons was started in April, 195,780 tons were completed. Material costs were $3,273,040 for the month while conversion costs were $594,400. There was no beginning work-in-process; the ending work-in-process was 70% complete. What is the material cost of the product that remains in work-in-process?

A. $164,410

B. $742,300

C. $140,560

D. $234,920