Jaylen Corp.$\text{'}$s EBITDA last year was $$310,000(=$ EBIT $+$ depreciation $+$ amortization$),$ its interest charges were $$9,500,$ it had to repay $$20,400$ of long$-$term debt, and it had to make a payment of $$17,300$ under a long$-$term lease. The firm had no amortization charges. What was the EBITDA coverage ratio?

a$.6\mathrm{.}57$

b$.6\mathrm{.}93$

c$.11\mathrm{.}57$

d$.12\mathrm{.}21$

e$.10\mathrm{.}37$