Final answer:
An article analyzing a speech by President Abraham Lincoln is an example of a secondary source since it provides analysis, interpretation, or evaluation of a primary source. The correct answer is option A.
Step-by-step explanation:
The student asked which example describes a secondary source. Among the options provided, an article analyzing a speech given by President Abraham Lincoln is an example of a secondary source. Secondary sources involve the analysis, interpretation, or evaluation of primary sources. In this case, the article would be a work of scholarship written about Lincoln's speech, as opposed to the speech itself or direct writings by Lincoln.