The mongol empire covered vast lands; the mongols themselves were known as

Answer choices are:

1. nomadic herdsmen with excellent equestrian skills.

2. multiple generations of military people.

3. fierce and ruthless warriors.

4. explorers seeking additional agricultural land.

Correct answer choice is:

3. Fierce and ruthless warriors.

Explanation:

The Mongols were unsettled individuals from an Ecoregion, in the montane grasslands and shrub-lands and temperate grasslands of Central Asia. They were called fierce horsemen and warriors, the Mongol clans were joined together politically in 1206 by the Herculean chief Temujin, later called Genghis Khan. However, the Emperor wasn't solely a talented victor, but additionally a good ruler.