Sue had bronchitis and had to go to the hospital. The episode cost her $$500.$ Her insurance policy has the following provisions: $$500$ deductible, $80/20$ coinsurance, and an $$850$ annual premium. Answer the following question.

Sue had another incident during the same year that cost her $$2050.$ How much was Sue's portion of this bill?

a$)410$

b$)2050$

c$)500$

d$)1640$