A thrift store turned its inventory approximately $12$ times in $2024.$ The store operates $365$ days a year. The stores annual sales in $2024$ were $$750,000,$ and its COGS were $40\%$ of sales. What was the stores average inventory in $2024?$

A$.$ $$21,667$

B$.$ $$3\mathrm{.}1$M

C$.$ $$260,000$

D$.$ $$54,166$

E$.$ $$25,000$

F$.$ $$50,000$