The following data have been taken from your company's financial records for the current year:Earnings per share$$10$Dividend per share$$6$Market price per share$$90$Book value per share$$70$The price$-$earnings ratio is: a$\mathrm{.}1\mathrm{.}67$ to $1.$b$\mathrm{.}15\mathrm{.}0$ to $1.$c$\mathrm{.}9\mathrm{.}0$ to $1.$d$\mathrm{.}7\mathrm{.}0$ to $1.$