The answer is
B) it was written in the middle of the 18th Century
New inventions would not have been possible without them willing to risk their money to help develop and implement their inventions.
Hope this helps
The correct answer is "The founders of American Democracy would not have expected corruption in Philadelphia."
The orator appeals to its "Pathos" or appealing to the sentiment of the people who are listening to him by reminding them that under that same hall the "Fathers of American liberty" voted there once.