The population of the industrial world grew dramatically in the nineteenth century, in part because
A) improved transportation networks resulted in cheaper food and therefore better diets.
B) families did not yet know how to limit the number of births.
C) new urban centers were healthier environments than were rural villages.
D) aggressive public health programs eradicated childhood diseases.
E) All these answers are correct.
The population of the industrial world grew dramatically in the nineteenth century, in part because "D) aggressive public health programs eradicated childhood diseases," although it also had to do with the sharp rise in industrialization.
