The following transactions took place in October for Roland Corporation. The opening inventory was zero.

October 5th	purchased 42 units for $131 each
October 7th	purchased 167 units for $103 each
October 8th	sold 88 units

Under a periodic weighted average system, what is the cost of goods sold for October?

Select one:

a. $11528.00

b. $9559.16

c. $10240.00

d. $9064.00