Who served as the 18th President of the United States and was a prominent Union general?

• A. Abraham Lincoln
• B. Andrew Johnson
• C. Ulysses S. Grant
• D. Jefferson Davis

Answer: (C)

Ulysses S. Grant served as the 18th President of the United States and was a prominent general in the Union Army during the American Civil War. His military leadership was crucial in many significant battles, including the Siege of Vicksburg and the Battle of Appomattox, which ultimately led to the surrender of Confederate General Robert E. Lee and marked a turning point in the war. After the war, Grant was elected president, serving two terms from 1869 to 1877.

In contrast, Abraham Lincoln was the 16th president and the commander-in-chief during the Civil War but was not a military general. Andrew Johnson succeeded Lincoln as president after his assassination, but he was not a distinguished general. Jefferson Davis was the president of the Confederacy, not the United States, and did not hold a presidential role for the Union. The designation of Grant as both a military leader and president makes him the correct answer to the question.