The covariance of two stocks was calculated at $-\mathrm{.}01733.$ If the standard deviation of the first stock is $\mathrm{.}106$ and $\mathrm{.}164$ for the second, determine the correlation coefficient.

Question $9$ options:

$-\mathrm{.}687$

$-\mathrm{.}887$

$-\mathrm{.}587$

$-\mathrm{.}997$