The answer is B, Jacob Riis.
Jacob Riis is most known for his pictures of an impoverished New York City, and worked for better living conditions in those areas.
The correct answer to this question is D) he was not sure the Constitution gave the president the right to purchase land.
Jefferson's main concern regarding the Louisiana purchase was that he was not sure the Constitution gave the president the right to purchase land.
Jefferson was decided to buy the Louisiana territory and sent James Madison to France to help Robert Livingstone -Minister to France- with the negotiations. The result was a successful one. The United States accepted to pay $11,2500,000 for 828,000 square miles of the Louisiana territory. The agreement was signed on May 2, 1803.
They were all afraid. They had more and more weapons but were more and more afraid because they knew that if any of them attacked, the others would retaliate and that monstrosities would be committed. They had many nukes but nobody used them out of fear of what the other one would do since they wouldn't be able to defeat the opponent before he launched his nukes.
Stalin modernized agriculture in the Soviet Union through collectivization. The correct option among all the options given in the question is option "c". This was the method in which all the crops produced, lands, livestock and buildings were taken over by the government. After that the farmers became a waged labor of the government and they were also given a target to fulfill.
Mussolini saw the expansion of Italy as a way to increase national pride. The correct option as per the options provided in the question is option "a".
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