A.
Plains Indians started hunting buffalo more efficiently.
Answer:
Correct answer is There was a renewed sense of nationalism.
Explanation:
First option is not correct as this era came after the famous War of 1812.
Second option is correct as more and more people believed in the unity of the country, that mostly was connected with the presidency of Monroe.
Third option is not correct as religion didn't play such an important role in the country.
Last option is not correct also as this was not a period when this type of reforms were necessary.
C. there was a boat carrying about 100 passengers which was sunk by German U boats.
The correct answer is C. An online encyclopedia article about Franklin Roosevelt.
Explanation
A secondary source is a type of information source that is characterized by documents in which primary sources are analyzed, translated, syntetized, and reorganizated by a third-party. In other words, the secondary source is content that was produced from a primary source. Examples of secondary sources are biographies, translations, articles, among others. According to the above, it can be inferred that the correct answer is C. An online encyclopedia article about Franklin Roosevelt since the author of this article surely relied on primary sources to write it.