Sales for Quality Shipping Company were $$9\mathrm{.}0$ million, all of which were credit sales. The firm maintained an accounts receivable balance of $$800,000.$ Determine the firm's days sales outstanding $($DSO$).$ For your calculation, assume a $360-$day year and round your answer to a full day.

A$.30$ days

B$.32$ days

C$.41$ days

D$.52$ days

E$.160$ days