Ben franklin wrote in a letter that “a disposition to abolish slavery prevails in north america.” what did franklin mean by this statement? in what year did he write this? was this before or after the american revolution

Ineed asap! ! what is the name of the system in which each branch of the u. s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances