A civilization is considered to be a civilization when it has an established army and has created cities, so C and E. However, this is debatable. Why this is debatable is because all of the others can be argued for. But in my opinion they are not necessary. Many civilizations lacked good governmental leaders and were run by weak leaders (for a short time though), neither are extra food supplies necessary (a civilization can raid other civilizations and steal their food supplies) nor is an education system (they can borrow educated people from other civilizations). So I would argue that one needs only created cities where people of a civilization live and a standing army.
Where people watch gladiator contests.<span>
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Answer: it would be "ultra-nationalist sentiment along with racist ideas of superiority" because imperial japan in the second world war waas trying to take over the eastern front and had already taken most of islands in the area like new gunine and took over much of china and was going to continue toward america and wanted hawaii hence pearl harbor. Like wise germany was in lue of trying to take over the entire world and making germany a superpower and might have succeded if not for the winter casuing the soviet union to push them back and lose a lot of land.
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hope this helps you lad
have a great day and stay safe :)
and if you have any other WW2 or WW1 related questions ill be happy to help :D