<span>Industrialization was contributed in the late 1800's</span>
Associated press is in New York
Those probably were freedom, independence and self-reliance. The cowboys represent brave and unflinching individuals who conquer unknown and often very dangerous new frontiers of the Wild West. They brave all the dangers with nothing but their wits and their skill with a firearm which usually is a pistol. They are free individuals in a free open space who are guided by their instincts and their morals.
Well i would say it would be between the last two, but choosing one maybe it would be the last one. This is because in the second to last one, the comma doesn't sound like it belongs there. See? try saying it. remember the comma means a pause in the sentence. So the only thing missing in the last one is a period but i am assuming that you meant to put one there.