The correct answer is B.
The Korean War was fought between 1950 and 1953. It was considered a proxy war in the major conflict known as Cold War, that confronted the Eastern bloc of communist countries leaded by the URSS and the Western bloc of capitalist countries headed by the US.
When the Korean War started, the country had splitted in two halves and North Korea attempted to invade South Korea. The communist North was supported by the URSS and China while the South was supported by the US.
The best and most correct answer among the choices provided by the question is the third choice "The Goths established a new, centralized government that controlled all Roman territory."
The Sack of Rome occurred on August 24, 410. The city was attacked by theVisigoths<span> led by </span>King Alaric<span>. At that time, Rome was no longer the capital of the Western Roman Empire, having been replaced in that position by Ravenna in 402.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!