The answer to this is letter D.) It led groups within empires to fight for their political independence. This era sparked lots of revolutions and upheavals against empires; different countries conquered by big empires united and strove to fight for freedom.
Explanation:
True friendship is a plant of slow growth, and must undergo and withstand the shocks of adversity, before it is entitled to the appellation.”True friendship is a plant of slow growth, and must undergo and withstand the shocks of adversity, before it is entitled to the appellation.”
When President Truman took a hard line against striking workers in the years immediately following World War II, he:
"had little understanding of the plight of laborers in the post-war years."
During the first months of his administration, he became involved in a struggle between coal miners and railroad workers. It took several meetings, and fierce arguments, to get them to agree, and end the strike.