Given the following data: written premiums $=$$$100,$ loss reserves $=45,$ underwriting expenses incurred $=30,$ unearned premium reserves $=25,$ losses $+$ loss adjustment expenses incurred $=60,$ earned premiums $=90,$ surplus $=50,$ what is the value of the loss ratio?

$\frac{60}{90}=0\mathrm{.}67$

$\frac{45}{90}=0\mathrm{.}50$

$\frac{60}{100}=0\mathrm{.}60$

$\frac{45}{100}=0\mathrm{.}45$