C. Water resources because it’s been most influential
Two major effects of the Crusades were that the kings' authority increased and the Europeans learned about new things from the Muslims they encountered. During the Crusades, the kings increased taxes to fund the cause. Many peasants also left their land to fight, and when they died, the land went to the king. With large amounts of money and land coming in, the kings gained power.
"<span>B. to explain that he was protesting against unjust laws" is the correct answer. He was very calm and collected about what he was doing and this letter became quite famous. </span>
Antoninus Pius was one of the so-called "5 good emperors" of Rome. Although the piety of his sobriquet is associated with his actions on behalf of his predecessor (Hadrian), Antoninus Pius was compared with another pious Roman leader, the second king of Rome (Numa Pompilius).