Question

the keys to the success of the mongolian military in the 1200s included
a fleet of powerful ships.
a single of squad of soldiers.
organized troops on horseback.
rifles and other advanced weapons.

Explanation:

The Mongolian military in the 1200s was known for their cavalry (organized troops on horseback). They didn't have a powerful fleet (as they were more land - based), a single squad of soldiers (they had organized and large - scale military units), and rifles/advanced weapons (rifles were not available in the 1200s). So the correct option is the one about organized troops on horseback.

Answer:

C. organized troops on horseback (assuming the options are labeled A, B, C, D with A being "a fleet of powerful ships", B being "a single of squad of soldiers", C being "organized troops on horseback", D being "rifles and other advanced weapons")