Which Statement Is False

Which statement is false?

A) Before the Civil War about three quarters of the farms of over 500 acres were located in the South.
B) The great abundance of land was the most influential factor in our economic development during the 19th century.
C) Although the percentage of Americans living on farms has declined substantially over the last 70 years,the actual number of people living on farms has remained constant.
D) None of the statements are false.