Read the passage. The Great Khan chose 12 barons to whom he entrusted all the necessary affairs of 34 provinces of [China]. . . . To every province is assigned a judge and several clerks. . . . These judges and clerks administer all the affairs of the provinces to which they are attached, under the direction of the 12 barons. Howbeit, when an affair is of very great importance, the 12 barons lay in before the emperor, and he decides as he thinks best.

–The Travels of Marco Polo,
Rustichello da Pisa

What conclusion does this passage best support?

The Yuan dynasty relied on a large organization to govern.
The Yuan dynasty succeeded by continuing Sung civil service practices.
The Yuan dynasty benefited from appointing people of a variety backgrounds.
The Yuan dynasty was ruled mainly by bureaucrats as the khans had little real power.