The Green pickle has estimted quarterly sales for the next year , starting with Quarter 1, of $18,600, $21,300, $24,500 and $19,600. The accounts receivable period is 18 days. What is the expected accounts receivable balance at the end of the third quarter? Assume each month has 30 days.

a. $4,333

b. $4,900

c. $4,500

d. $4,667

e. $4,600