Consider the Following Inventory Transactions for September: Beginning Inventory $\quad 15$

Consider the following inventory transactions for September: Beginning inventory $\quad 15$ units @ $3.00
Purchase on September $12 \quad 20$ units @ $3.50
Purchased on September $23 \quad 10$ units $@ \$ 4.00$ For the month of September, the company sold 35 units. What is the cost of good sold under the weighted-average cost method (round the weighted-average unit cost to four decimals if necessary) ?

A) $121.
B) $116.
C) $124.
D) $131.