The answer is B. This is because it was during the Great Depression.
The new manufacturing process began to take place around 1760 went till roughly 1820-1840
The water molecule starts arriving from one of the two rivers that form the Tennessee River, the Holston and French Broad rivers, in Knoxville. From there, it follows the course of the river, towards Chattanooga, always heading southwest, seeking to reach the neighboring state of Alabama. Enter through North Alabama, looking at the city of Decatur, and then Florence, to follow the current and decide to visit the State of Mississippi by the border, in Pickwick Lake, to end its hectic and interstate trip, returning to Tennessee; helping to define the great Tennessee Divisions: the Middle and the West, to finally connect with the Kentucky Lake.
