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.
