The poet suggests that Common people were not considered worthy of being part of history (C) and that history is about Kings and Queens (D). The fact that no records are kept of soldiers and slaves, who are considered common people, implies that their contributions and lives are not deemed significant enough to be documented in history. This reinforces the traditional view of history as a narrative of kings, queens, and other powerful figures, neglecting the experiences of ordinary people.

A. They do not play a significant role in history: This is incorrect. While it's true that history books often focus on major events and powerful figures, this doesn't mean that the lives of ordinary people are insignificant. The poet's emphasis on the servant girl highlights the importance of recognizing the contributions of all individuals, regardless of their social status.

B. Their sculptures are destroyed: This is irrelevant to the poem. The servant girl's sculpture exists and is admired by the poet.