The correct option is C "Transportation along the Mississippi and Ohio rivers greatly increased"
The wheeled steamboat is a type of ship that had paddle wheels usually on either side of the hull, or at the stern, a design that for a time extended a lot. At first these ships also carried masts with sails, especially the transoceanic vapors. A certain type of river vapor carried a single wheel in the stern instead of side wheels.
With the passage of time this kind of ship would give way to some of the most famous ships of all time, the river wheel steamers, such as those that circulated in the Mississippi and the Missouri. Vapors of this type were so successful that they were soon used in many of the great rivers of the planet, such as those that were taken to the Congo during the colonial era. In the 19th century, large wheel steamers were transported piece by piece on the shoulders of porters from the coast to the navigable zone of the Congo River to save the fearsome falls of Livingstone.