- 
					 Celtic, Germanic and Ural-Altaic language groups migrated to west because
 
- 
                        
- The grasslands of Central Asia dried the life of nomadic groups
 - The expanding Chinese Empire disrupted the life of nomadic groups
 - They were pushed westwards when the eastern most groups moved west
 - These were forced migrations which resulted from the slave trade
 
 
Correct Option: C
NA