Which of these regions was the second to industrialize following the industrial revolution

Region A was the second to industrialize following the industrial revolution. Option C is correct.  The United States was the second industrialized country.

Industrialisation is the period of social and economic shift that change a human group from an agrarian society into an industrial society, involving the extensive re-organisation of an economy for the purpose of manufacturing.

The industrial growth that began in the United States in the early 1800's went on steadily up to and through the American Civil War.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).