The right answer is : "It led to competition between nations for colonies."
Explanation:
There was a fierce competition among European powers to conquer and colonize new territories, especially in Africa and in Asia. Having colonies was a necessary condition to be seen as a great power, a question of status and image. Britain and France had the largest colonial empires. Germany achieved reunification and quick industralization ensued. The German empire came a little late to the colonial division of the world, and a desire to have more colonies was part of their motivation - together with other factors, for sure - in German policies before the start of WWI.
