To provide you with an accurate answer, I would need specific details about the event you are referring to. However, based on the options you've presented, I can offer a general interpretation of what the organizers might seek to show:
- A. If the event was focused on historical aspects relating to the Civil War and the city's transformation, this could be a possibility.
- B. If it was an event discussing industrial development and environmental concerns, this would align with option B.
- C. If there was a competitive emphasis on industrial operations between the South and North, option C could be the answer.
- D. If the event centered around the achievements and social progress of African Americans post-Reconstruction, then option D would likely be the focus.
If you can provide more information about the specific event, I'd be happy to help determine what the organizers sought to show more accurately!