Hey there! I'm happy to help!
Nationalism is basically being super obsessed with your country. It's not patriotism though. Nationalism is extreme, like Hitler and Germany. It kind of makes you want to exclude other nations for the bettering of your own, wanting to go to war, etc. In the context of a revolution, it is a certain nation wanting independence. So, let's look at our answer options.
A) The nationalistic feelings in some regions led to increased industrialization.
Nationalism causes revolution and war, not industrialization. Innovation and invention is what would cause more industrialization. Therefore, this option is incorrect.
B) The urbanization in some regions was caused by the pride that some citizens felt for their nations.
This one doesn't make sense either. Loving your country doesn't cause you to build a bigger house. This is incorrect.
C) The imperialist laws that oppressed some regions were caused by political uprising.
Even if this one might be true, it isn't answering the question because it hasn't mentioned nationalism at all. Therefore, this is incorrect.
D) The political revolutions in some regions were caused by nationalistic feelings.
This one seems the most accurate. Feelings of nationalism definitely lead to political revolutions. In the American Revolution, many nationalists in Boston carried out political revolutions such as the Boston Tea Party. This all led to the American Revolution.
Therefore, the correct answer is D.
I hope that this helps! Have a wonderful day!