Final answer:
The comparisons in the stanzas emphasize the North Star's constancy as a symbol of stable guidance and hope, particularly for escaping slaves. Therefore, the correct option is B.
Step-by-step explanation:
The comparisons made in the provided stanzas from various texts emphasize the North Star’s constancy. By recurrently alluding to the Star as a steadfast presence, whether in times of solitude, in the face of war as in the national anthem, or when sailors navigate by it, the texts highlight the North Star as a consistent figure in different scenarios. Furthermore, in historical context, the North Star symbolized hope and guidance for escaping slaves, representing stability and orientation towards freedom.