The standard deviation of return on investment $A$ is $21\%,$ while the standard deviation of return on investment $B$ is $16\%.$ If the correlation coefficient between the returns on A and $B$ is $-0\mathrm{.}268,$ the covariance of returns on A and $B$ is

Multiple Choice

$-0\mathrm{.}2042$

$-0\mathrm{.}0090$

$0\mathrm{.}0090$

$0\mathrm{.}2042$