In the last reporting period, Global Tech Company recorded $140,000$ units sold for the first time in the history of the company. The price per unit was $$85\mathrm{.}63$ and variable costs per unit at $$35\mathrm{.}07.$ Compute the contribution margin. Next, compute the fixed costs if the operating income is $$3,810,000.$

A$.$ $$4,909,800$;$$4,528,800$

B$.$ $$7,078,400$;$$3,268,400$

C$.$ $$4,909,800$;$$5,290,800$

D$.$ $$11,988,200$;$$11,607,200$