which statement best explains why historian a mentions the issue of slavery while historian B does not

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

people had jobs and began to work. that’s why the commercial revolution was great.

napoleon the third became a empire in 1873 also known as the era of the franco-prussian war.