Which sentence in this excerpt from “Behold the Brooklyn Bridge” best shows the narrator’s young and naïve perspective?

We weren't quite sure what it all meant, except that for now, my sister Rachel and I were putting on our finest dresses and the shoes Mother had polished twice.

Explanation:

With this quote from the passage, it shows that they don't really know what is happening around them, things are happening and they are kind of just, "going with the flow" in a sense. They don't understand why they are getting all dressed up, they don't even know what the celebration was about.

for this case, we must find the number of deaths per day of the year 2015, in automobile accidents, knowing that 32,400 people died.

knowing that the year 2015 had 365 days we have the following division:

where "x" represents the number of deaths per day.

rounding off we have:

approximately, 89 people per day died in 2015

answer:

89 people per day