B. a country is harboring terrorists responsible for attacks on the U.S.
Explanation:
The Powell Doctrine is a term that is used for a policy that is primarily focused on defense of the country and preventing attacks on the country, usually by using military force. In order for a military attack to be approved though numerous things have to be taken in consideration, examined, and answered.
From the presented scenarios, the Powell Doctrine would enable the U.S. the intervene in a country is harboring terrorists responsible for attacks on the U.S. Such examples in the past few decades have been the war in Afghanistan because of Al-Qaeda, and the war in Iraq, also because of Al-Qaeda. A military intervention also occurred in Iraq and the neighboring Syria because of the rise of the terrorist organization ISIS among other reasons.
Washington and the first congress had to make numerous decisions about the new government, since there was no precedent--such as how to establish a cabinet, how the present would be greeted, whether the president would be present during sessions of congress, etc,
People were governed by councils, instead of by an absolute ruler
He believed he had sailed all the way around the world and didn't know that North America existed. However, he didn't really think he had reached Asia. He thought he had reached the East Indies, an island chain containing Indonesia.