I think the answer is letter D. <span>force the dependent South Vietnam to accept U.S. rule until it could establish independence from colonial rule and become an independent country</span>
This was because the US was afraid that the whole
Asia would withdraw from democracy and turn to communism. They had sent troops
to continuously assist South Vietnam.
Thomas Jefferson creates the corpse of discovery
The first issue over tariffs goes back to the Founding of our country. The 3/5 Compromise and Fugitive Slav Clause were created in response to the issue over tariffs. North wanted them and the South didn't and slavery had the opposite with the South in favor and North against. The North gained a tariff and south was able to keep slavery.
The commonwealth of nation has helped to improve trading activities among nations by common tariffs on goods. They ensure save guidelines and better terms of delivery e.g. ensuring a better ship and cargoes. They have helped to train members state in order to defend its integrity from the vengeance of evildoers.
Answer is A -- Italy!
Hope I helped!