Which historical event was greatly responsible for global stratification as we see it today? question 11 options: 1) world war i 2) the fall of the british empire 3) the french revolution 4) the industrial revolution?

The industrial revolution is the historical event was greatly responsible for global stratification as we see it today. The mid 1700-s were characterized  with new manufacturing processes, industrialization and urbanization. The industrialization resulted in hierarchical ranking of the people in different groups according their income. The term used for this is social stratification.  
Solution: 4