Answer:The precursors to World War I led to an increase in immigration from some regions of Europe.
Explanation:
The third person is he/she/it/they.
If I didn't fully answer your question, please comment and I'll reply.
The economist John Maynard Keynes said that "<span>(A) Using government spending to increase consumer demand for goods"</span> was necessary to restart the economy during the Depression, since the private sector was unable to do so on its own.
The actor you're looking for, and who has indeed written down his name in history as being a famous actor that was also involved heavily in charitable work and auto racing was Paul Newman.