B.when an action is done
when an action is done to it when it is describing the verb when it possesses something when it is doing the action.
It is simply saying that all is now in chaos. I am assuming the part that is confusing is "the quiet sands have run." It could easily be alluding to the way that during a sandstorm, the calm sands of the surface are no longer there as the chaos of the storm casts them about.
Explanation:
Since Blacks and Hispanics are predominantly working in low-paying jobs, which are more likely to have been affected by pandemic and see more employment declines during recessions, the wage gap in the USA is likely to widen.
