Here's a link that hopefully helps you:
https://www.smithsonianmag.com/smart-news/five-things-know-about-declaration-sentiments-180959352/
Robert Cavelier<span>, </span>Sieur de la Salle was believed to be the first french explorer in Oklahoma territory.
It’s A, I hope this helped out! Have a nice day :)
I'm not sure what your word choice is, but the economy during the 1920s was "good". Prior to the Depression, the economy was stable and business investments were increasing.