According to Machiavelli's the Prince, princes should act in a practical manner. Machiavelli produced a practical guide to the arts of statecraft, which served the practical needs of the powerful families that emerged in the Italian city-states during the Renaissance. Statecraft involved carefully crafted approaches to the realistic conditions faced by rulers. It was driven less by emotion or morality but reason.
(got it from online) <span>The aim of the crusades was to take over the so called Holy Lands. Much of the ambition was to just loot the place instead of saving it. Sometimes there was a success and the crusaders held it but it was never held for very long. They did hold Jerusalem for over 75 years at one time. But that is just a drop in the time line for the Mideast. Eventually, the Crusaders were kicked out. Last, we still feel the effects of this effort. Many of the Islamic nations still remember it as if it was yesterday and they are not fond of those memories. Hence a successful failure.</span>
D is the best answer. does that help?