The covariance between Mun Corporation's common stock returns and the return on the market portfolio is $0\mathrm{.}0415.$ The standard deviation of the market is $0\mathrm{.}4$ and the standard deviation of Mun is $0\mathrm{.}0$ What is the beta of Mun Corporation's common stock?

$0\mathrm{.}259$

$33\mathrm{.}878$

$0\mathrm{.}030$

$2\mathrm{.}964$

$1\mathrm{.}186$