I think it’s C
I would wait for more people to answer and pick from there.
I think the answer is B. Since this *is* about a plant.
Answer:
<em>Well, In the industry era there was strong debate the threat of machines spaming mass unemployment and leaves millions of humans laborers. Hope That Helps!</em>
Papa glanced over toward the crowd, "Why that’s President Arthur himself!" he exclaimed is the sentence from the story best supports the idea that the event was of national importance.
Option B
<h3><u>Explanation: </u></h3>
Chester A. Arthur was the president of the United States. When a President visits any monument and inaugurates it definitely it becomes the historic moment. It is clear from the story that President Chester A. Arthur has visited the Brooklyn Bridge when it was made, his visit has increased the popularity of the Brooklyn Bridge.
Surely it has become a historic and national event for the country and for the people. From the above line, it is clear that this sentence denoted the historical event of the opening of the Brooklyn Bridge.