During World War II, many goods were not available in Europe. Canadians built factories and made goods as well as war supplies. After the war Canada sold or traded the goods with the United States. Which of the following statements best summarizes the effects of World War II on Canadian industries?

Canadian industries produced goods, but not war supplies.
Canadian industries grew stronger as a result of World War II.
The economies of both the United States and Canada were not changed by the factory production.
The United States economy suffered greatly.