Which statement explains why a german submarine sunk the lusitania?
germany wanted to draw the u. s. into the war.
the german commander mistook it for a warship.
germany practiced unrestricted submarine warfare.
germany had warned americans not to travel on british ships.

I believe the answer is: Germany practiced unrestricted submarine warfare.

In restricted werfare, all of the countries would agree that they would not attack the submarines that are not a part of the warships. (such as passenger ships). The Gerrmany choose to adopt unrestricted warfare and sunk one of England's passenger ship.

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .