Z-Mart Had Net Sales of $31,500 and Accounts Receivable of $2,700.To

Z-Mart had net sales of $31,500 and accounts receivable of $2,700.To one decimal,Z-Mart's days' sales uncollected was:

A) 11.7.
B) 23.3.
C) 28.6
D) 31.3.
E) 46.6.