The answer should be d :)
The correct answer is <span>B. force Japan to open its ports.
President Fillmore send even a letter with the captain asking Japan to do it. The opening of the ports would be a part of enabling trade with Japan.</span>
It was invented in 1950. They started to work on it in 1930 I beleive.
<span>that Hellenistic inventor and mathematician would be : D. archimedes
During his bath time, archimedes found out that if an object is partially or completely submerged in a fluid, it will create a force of magnitude which is equal to the fluid in opposite direction from where it's come from, which is leveraged in the development of modern ships</span>