By what process did the German kings gain their throne after the Carolingian era? O a. A council of nobles sent the names of two potential kinds to the pope, who determined which one would become king since the German king was usually also the Holy Roman Emperor. O b. The oldest son or nearest male relative of the previous king assumed the throne. O c. The throne rotated in a set order among four main noble families who held the most powerful duchies. This kept the peace by making sure that none of the families would be left out. Od. They were chosen by electors, which were high-ranking nobles and some of the most important archbishops