Read this excerpt from a secondary source about Abraham Lincoln. As a young man, Lincoln was very involved in law and politics, and the two proved to be a recipe for success. Lincoln became well known for his excellent speaking and debating skills. As a result, he was elected to the Illinois state legislature in the early 1800s. When his term ended, the people quickly reelected him, and he served another two terms.

The information in this source gives readers a better understanding of

A. how Lincoln began his career in politics.
B. why Lincoln wanted to become a lawyer.
C. what issues were important to Lincoln.
D. how other people helped Lincoln succeed.