Considering the following, what is the liquidity ratio?

$\backslash$table$[[$Item$,$Annual Amount$/$Value$],[$Home$,$$$450,000],[$Mortgage$,$$$300,000],[$Gross income,$$165,000],[$Bank accounts,$$18,000],[$Credit card balances,$$15,000],[$Automobile$,$$$30,000],[$Automobile loan,$$20,000],[$Total annual expenses,$$70,000]]$

Select one:

a$.1\mathrm{.}21$

b$.2\mathrm{.}36$

c$.3\mathrm{.}09$

d$.3\mathrm{.}89$