The answer to this question is c
The United States mobilized 4 million troops and had just about 110,000 troop deaths in WWI
"War broke out among American <span>Indian groups when warring chiefs signed new treaties with the government" is correct, although there were also fights between whites and American Indians. </span>
On the 31 January 1933, Hitler, conscious of his lack of a majority in the Reichstag, immediately called for new elections to try and strengthen his position. The Nazis aimed to increase their share of the vote so that they would have a majority in the Reichstag. This would allow them to rule unopposed and unhindered by coalition governments.