Stock A is expected to return $14$ percent in a normal economy and lose $21$ percent in a recession. Stock B is expected to return $11$ percent in a normal economy and $5$ percent in a recession. The probability of the economy being normal is $75$ percent and being recessionary is $25$ percent. What is the covariance of these two securities$?$A$)\mathrm{.}007006$B$)\mathrm{.}006563$C$)\mathrm{.}005180$D$)\mathrm{.}007309$E$)\mathrm{.}006274$