Planted grass so dust couldn't go even where
<span>B) They were afraid of retaliation from free African Americans.</span>
I am not entirely sure about this one. But I believe that the "Emancipation Manifesto" signed by Czar Alexander II gave serfs land, or at least gave them the freedom to do what they wanted, like buying that said land.
No freedom of religion, or elections was yet to be had in Russia.
The answer to the question is B
