I believe your answer is mass...
Two theories would be that children learn through watching (like watching parents interact, react, and communicate with others), and by doing (hands-on activities)
The south wanted more vote. So four family of slavery will be 504. Because they times it by 500.
A. The First Confiscation Act provides the roots of emancipation, as Congress empowered military leaders to provide freedom to enslaved persons.
The 13th amendment took place after the Emancipation Proclamation, so it would not be involved in the process. African Americans did not have much power to create policy at that time, so the answer is A.