Lusitania was primarily used to ferry people and goods across the Atlantic Ocean between the United States and Great Britain. The sinking was important because
Its sinking caused moral outrage both in Britain and in the US and led, ultimately, to the USA declaring war against Germany.
Most hills are "B. Not steep", since for it to be a hill it needs to be somewhere in between the elevation of flat land and mountainous land, which of course is much higher and usually steeper.
Stalin was all for communism as to where Hitler was for Fascism