如果你正在读这篇文章, 那么你应该为什么????这不是答案笑什么, 你会报告确定去, 我不在乎婊子
D: They sought a more hospitable climate :-)
Answer: The Gadsden Purchase, or Treaty, was an agreement between the United States and Mexico, finalized in 1854, in which the United States agreed to pay Mexico $10 million for a 29,670 square mile portion of Mexico that later became part of Arizona and New Mexico.
The answer is B..........