Spain, i learned that friday in history class
The correct answer is - establish a democratic government.
One of the main goals of the war in Afghanistan, at least officially, was to establish a democratic government. In order to accomplish such a thing, the Us forces, as well as the others that fought alongside them, had to eliminate al Qaeda first, as well as to put under control the separatist, extremist tribes that were controlling parts of the country.
Unfortunately, this didn't really worked out as planned, and Afghanistan is still a country in terrible condition. It is still a country where the safety is on a very low level, the human rights are not respected, especially towards the women, and the existence of terrorist and extremist groups is still a huge problem.
I think citizens should know about pearl harbor because it was an American tragedy and it got the Americans into WW2.
The correct answer is D, chronological thinking. This is simply thinking based on the order of events that occur in time.
Historiography is the broader study of writing history, and the other answers are not as relevant to the timeline, in this scenario.