They came to the US as part of the Bracero program.
Your answer would be C, mainly because the soil near a waterway is very fertile, and before cars, boats were a cheap, easy way of transit.
The Americas had generally good soil. Cash Crops were planted.
Also, the more territory a country owned (still relatively true today) the more powerful it was(/is).
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "Burma and Vietnam," since Burma actually changed to Myanmar. </span></span>
<span>One of President Theodore Roosevelt's most lasting and significant contributions to the world was the permanent preservation of the some of the most unique natural resources of the United States. According to the National Geographic, the area of the United States placed under public protection by Theodore Roosevelt, as National Parks, National Forests, game and bird preserves, and other federal reservations, comes to a total of approximately 230,000,000 acres or about 84,000 acres per day!</span>