D. The attack on Pearl Harbor led the U.S. away from isolationism and officially into World War II.
It means to not only think of your own interest but also to the interest of others.
That is the Nile river and or lake victoria
This is called the frustration of purpose. It's a doctrine about how cases would be solved if unforeseen circumstances were to occur. A modern example would be if you took a mortgage but an earthquake completely destroyed your house. Due to the frustration of purpose, you could have your mortgage canceled because you don't have a house that the mortgage was for, so you wouldn't have to pay for it any more.
