The main reason why Alexis de Tocqueville traveled to the united states was to observe American democracy in action, and to take note of what worked and what didn't, as many European countries were going through democratic revolutions of their own.
C. They encouraged rivalries between settlers for goods and land.
Technology companies have shaped the economy of Texas as its home to six of the top 50 companies on the Fortune 500 list. The economy of Texas is the 2nd largest in the U.S and 10th largest economy in the world by G.D.P. with a Gross State Product of $1.645 trillion. Texas is one of the major hubs for the development of Computer systems, components, software, and information infrastructure. Some companies in Texas are Dell, AMD, Cirrus Logic, Intel, and Silicon Labs.
Its C because they had to pay Debts :)
The emotions among the people when the Civil War started was mixed. People were overwhlemed with the amount of killing, yet didn't want to stop it until they got their way. The Battle of Antietam is the deadliest one day battle in US history. So you can imagine how much that shook up the people back at home. Photography was also very new and for the first time their were pictures available of the battlefield. It was traumatizing, yes, but the main mind set during the Civil War was to kill as many people who didn't approve with you as you could to protect your lifestyle. (Sorry it's so long :P hope you understand now)