Answer:
Battled fiercely for control of the land
The key word in the question is "cultural" , as in "cultural opportunity".
Transit systems, factories and even schools are not cultural opportunities, but museums are - that's why a) is the correct answer.
And there were already museums in 1800 - for example Rijksmuseum in the Netherlands.
The use of atomic bomb on Nagasaki and Hiroshima prevented the massive invasion into Japan that was scheduled for the fall of 1945. The United States has dropped two nuclear bombs on Nagasaki (August 6, 1945) and Hiroshima (August 9, 1945) after getting the consent of United Kingdom (as required and agreed upon in Quebec Agreement).
