Use the belоw infоrmаtiоn to аnswer questions 1 - 5. Review the below informаtion on the US Rail Transportation Industry (NAICS 48211). Answer the below questions based solely on the information provided and the Porter’s Five Forces Model. Company Market Share Norfolk Southern Corp 14.4% CSX Corp 15.2% Burlington Northern Sana Fe Corp 28.5% Union Pacific Corp 29.5% Other Companies 12.4% The US Rail Transportation industry is comprised of four players that account for about 88.3% of revenue in 2015, leaving over 500 operators to compete over the remaining market share for rail transportation. Extensive sources of capital are required to establish new rail networks and to purchase cars and locomotives. From 1980 to present day, the Association of American Railroads states that $525.0 billion has been reinvested to improve the freight rail network. Furthermore, unlike trucks, barges and air freights, rail freights are owned and funded by private investors. This requires industry-specific expertise in raising capital. Consequently, $0.40 is reinvested for every dollar generated in revenue. In 2013, the Association of American Railroads reported that rails were four times more fuel-efficient than trucks and emitted 75.0% less greenhouse gases. As companies look to promote their environmentally friendly practices, they have turned to rail transporters to move their goods. As a result, over the five years to 2015, industry revenue is estimated to grow at an estimated annualized rate of 4.6% to $84.0 billion. Accordingly, the US Department of Transportation estimates that by tons of cargo, demand for rail transportation will increase 88.0% by 2035. The key buyers of the industry are those companies in need of transporting bulk freight. Bulk freight refers to the process of transporting unpackaged commodity cargo in large quantities, such as coal or grain. The key suppliers in this industry are petroleum, rail maintenance services, locomotive and transit car manufacturers, and labor. Wages as a percentage of revenue have decreased from 24.3% in 2010 to 22.5% in 2015. This is primarily because industry operators have increased their capital investment, which has led to greater automation and reduced reliance on labor. This industry has a _______________ industry structure, which ___________________.