Answer:
Mostly money and promise of the American dream.
Many poor Europeans and other immigrants heard about the Americans and their lavish lives and wanted to try their luck and escape their poverty. However, they didn't have enough money to emigrate to America which is why they would become indentured servants.
This meant that they would sign a contract with their employer who would then pay for their travel expenses to America, and in turn they would have to work for them for a number of years in return for food and shelter. When the contract expired, ideally the indentured servant became free (although this didn't always happen). Their status was slightly better than that of a slave.
(Since you didn't give us any options, I can't tell you the exact answer).
Unrestricted submarine warfare
The form of city government favored by the biggest cities is the Option C: Mayor-Council. For instance, if we are talking about the state of Texas, then all the largest cities operate via Mayor-Council / Council-manager system, except for the Houston and El Paso.
This is quite a trick question indeed. Isaac Stevens had been appointed as Governor of the Washington Territory by President Franklin Pierce. He was also named Superintendent of Indian Affairs and was thus directly in charge of any official dealings with Native American tribes.
He did force several tribes to sign treaties with the federal government to cede their lands to it. Although he acted autocratically and in a very authoritarian manner, he did it in the capacity of the positions described above and as a representative of the territorial government has was its representative therefore the correct answer is “The territorial government” as he did not act this way out of a private initiative.
