In May 1985, Gorbachev gave a speech in Leningrad in which he admitted the slowing of economic development, and inadequate living standards. Gorbachev and his team of economic advisors then introduced more fundamental reforms, which became known as perestroika (restructuring).
Well they probably helped some armies with conquest and in return they got land.
The Continental System was a decree by the Emperor of France, Napoleon Bonaparte which was made to limit British trade and bankrupt the country.
At his mightiest, Napoleon controlled almost every powerful country in Europe, except for Britain and Russia. He found it difficult to directly attack Britain and instead wanted to bankrupt it.
However, this eventually backfired and left France in a very bad economic conditions and Britain took advantage of this.
Many smaller countries that France had annexed, took up arms against Napoleon and began to fight. With a weakened economic position, Napoleon eventually lost the Empire.
The answer is A. The medieval ships were designed mostly for battle. This is 101% correct