The South based its economy on the use of slaves for agricultural production of things like cotton and tobacco. The North had significant amounts of industry and other finished goods. The South could supply some of the raw materials for the industry of the North. Regardless, the North relied on paid labor.
The correct answer is B) coal.
The industry that was influenced by the steam engine and first allowed for technological innovations in transportation was the coal industry.
The steam engine used coal to work. This new invention served to produce energy in a most powerful way than other devices.
The invention of the steam engine changed the way people produced goods in industries and in the transportation industry. Indeed, this invention transformed industries.
New machines in the fabrics helped to introduce the concept of mass production to produce goods more efficiently and at better costs. In the transportation industry, the steam engine allowed the development of railroads as the best means of transportation in the 1800s.