JC Manufacturing purchased inventory for $$4,700$ and also paid a $$340$ freight bill. JC Manufacturing returned $20\%$ of the goods to the seller and later took a $3\%$ purchase discount. Assume JC Manufacturing uses a perpetual inventory system. What is JC Manufacturing's final cost of the inventory that it kept? $($Round your answer to the nearest whole number.$)$

A$.$ $$912$

B$.$ $$3,647$

C$.$ $$3,911$

D$.$ $$3,987$