Consider the following reactions:

$\left(\mathrm{CH}_{3}\right)_{3} \mathrm{O}^{-} \mathrm{K}^{+}$is incorrect representation of potassium tert-butoxide $\left[\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CO}^{-} \mathrm{K}^{+}\right]$.

So it is possible that it can be given as Bonus