It enabled them to increase their power over the trade business creating a complete monopoly which in turn led even to military expansions. Eventually, it led to the complete fall of Mughal empire and establishment of East India Company as the rulers of colonial India.
In the unification of the Mediterranean world.
The Himalayan Mountains created a natural protective barrier. Many civilizations have benefited from natural protective barriers. Egypt had the desert, Switzerland had the Alps, the Alps saved Rome too.
I think it might be D. Although I am not a genius there were a few Greek uprisings and the Persians had one simple rule that you had to follow, don't ever, EVER betray them.
I believe the answer is: It delayed or extended nationalist struggles.
The nationalist struggles come after different nations started to fully embodied nationalist movement, which make them tend to incline to prove their nation's superiority over another nations. This type of thinking often lead to conflicts among these european nations.
