Which of the Following Statements Is True About Past Crime

Which of the following statements is true about past crime rates in the United States?

A) The United States experienced a great crime wave during the 1920s and early 1930s due to prohibition.
B) Crime rates grew steadily in the twentieth century.
C) According to historians, industrialization and urbanization contributed to the rise of crime.
D) The western part of the United States had less crime in the nineteenth century due to the fact that all citizens carried guns.
E) During the Civil War, there was little crime as everyone focused on the war effort.