Winkle Company uses the FIFO method in its process costing system. At the beginning of March, the work-in-process inventory in the Blending Processing Center consisted of 5,000 units, 90% complete with respect to conversion costs. At the end of the month, the work-in-process inventory consisted of 2,000 units that were 60% complete with respect to conversion costs. If 10,000 units were transferred to the next processing center during the month, what would be the equivalent units of production for conversion costs?

a)6,700 units.

b)11,700 units.

c)10,300 units.

d)13,000 units.