For Question 4, the correct answer is:
The poet uses contrasting imagery of the beauty of the spring time weather and the freedom of the bird on the bough to contrast with the bird in the cage beating its wings bloody on the bars to reveal the tragedy of the denial of freedom.
For Question 5, the correct answer is:
No one can live a full and happy life if they are denied freedom.
For Question 6, the correct answer is:
"'It is not a carol of joy or glee, / But a prayer he sends from his heart's deep core, / But a plea that upward to heaven flings-" (Dunbar 18-20). This section supports the central theme of the poem that no one can live a full and happy life if they are denied freedom because it shows the deep sadness and longing for freedom that the caged bird feels.