Answer:
The Mongols were a nomadic people from the steppes of Central Asia. Known as fierce horsemen and warriors, the Mongol clans were united in 1206 by the powerful chief Temujin, later known as Genghis Khan.
I think the best answer is option D
That statement IS arguable because not everyone would agree and also NOT defensible since theres no proof to back it up with, so the answer would be (D)
They make swords shield for the king´s army