The main reason why imperial nations built large naval forces was to "<span>to protect their economic interests" since the longer the reach of a nation, the more vulnerable it was. </span>
western schism was a splitt in the Catholic church between 1378 and 1417 while the victory of Charles Martel in the battle of tours was the victory of Christians over Spanish moors which stopped Muslim advances to Eastern Europe.
Explanation
Western schism occurred due to the conflicts in the Catholic church and two men simulatneously claimed to be the pope.The rivalry defamed the Catholic church and came to an end in 1418.
Battle of tours was much different from western schism because it was not a conflict within a religious authority but a conflict between two kingdoms.
Mikial gorbachev...........
I would think it is "In some regions, African Americans were required to
pass the same test as white citizens before they could vote." Because
the very badly written sign says that if a African american had an
education that he could vote with the whites.
I believe the answer to be C. checks and balances