By Banning the Importation of Slaves by 1808 with the Constitution,what

By banning the importation of slaves by 1808 with the Constitution,what did critics of slavery hope to accomplish?

A) They wanted to start a civil war.
B) They wanted to weaken the shipbuilding industry in the United States.
C) They hoped cutting off the supply would eventually end slavery in the United States.
D) They hoped the national government would focus on developing manufacturing.
E) Their goal was to weaken the Quakers,who were critical of slavery.