XYZ$,$ Inc., spends $$300,000$ per annum on its collection department. The company has $$40$ million in credit sales, its average collection period is $2\mathrm{.}0$ months, and the percentage of bad$-$debt losses is $3\mathrm{.}0\%.$ The company believes that, if it were to double its collection personnel, it could bring down the average collection period to $1\mathrm{.}5$ months and bad$-$debt losses to $2\mathrm{.}5\%.$ The added cost is $$300,000,$ bringing total collection expenditures to $$600,000$ annually.

Part A

How much account receivable will be decreased if the expansion is adopted?

Group of answer choices

None of them

$$1,666,667$

$$1,333,333\mathrm{.}33$

$$833,333\mathrm{.}33$

Part B

How much bad$-$debt losses will be reduced if the expansion is adopted?

Group of answer choices

$$400,000\mathrm{.}00$

$$200,000\mathrm{.}00$

$$100,000\mathrm{.}00$

None of them

Part C

At what opportunity cost will the expansion be break$-$even?

Group of answer choices

None of them

$6\mathrm{.}00\%$

$12\mathrm{.}00\%$

$10\mathrm{.}00\%$

$8\mathrm{.}00\%$