It required all escaped slaves to return to their masters and that any free states had to cooperate with this law.
D
The economy slowed during the great depression
Hm, this is not an easy question.
Generally the best way to prevent a nuclear disaster is not to have any weapons, so A would be a good option. But in the modern world, complete destruction of all weapons is not feasible, and people believe that since US and Russia limited their number of weapons, this is no longer such a big concern (option D, which is I think the best. Personally, however I faviour A as a solution to the problem of nuclear weapons).
St. Francis of Assisi founded the Franciscans and was a cofounder of the Poor Clares with the assistance of St. Clare of Assisi.
Charlemagne gave no mercy to Saxons and he executed over 4,000 of them.