Part $1.$ If the economy is normal the stock of Flores corporation is expected to return $11$percent. If the company falls into a recession the stocks return is projected at a negative $.\mathrm{.}5$percent. The probability of a normal economy is $76$ percent. What is the standard deviation of the returns on this stock?A$.6\mathrm{.}62$B$.8\mathrm{.}24$C$.\mathrm{.}24$D$.4\mathrm{.}91$E$.12\mathrm{.}35$