The long-line structure allows for predictable rhyme schemes.
General Burnside
The refusal to pursue the enemy at the close of the Antietam battle and for weeks afterwards, was the last straw for Lincoln, and he removed McClellan from power. Ultimately, McClellan was replaced by General Burnside as the new commander of the Army of the Potomac.
Your answer would be “ b “ !
The answer is D! Nobody is mentioned but it is clearly talking to somebody so the subject or person is implied!