How can Reldresal tell that the heir to the throne is uncertain about his political allegiance?

The correct choice highlights the significance of the heir's footwear, specifically the wearing of two different types of heels. This detail serves as a symbol of his indecision and lack of commitment to a specific political stance. In the context of the story, such an unusual choice in footwear indicates to Reldresal that the heir is torn between competing political factions, embodying the confusion and uncertainty that can come with political allegiances.

The choice not to wear shoes at all, for instance, does not carry the same connotation of duality and conflict, as it could simply signify a casual or relaxed demeanor rather than political uncertainty. Additionally, the heir’s tendency to avoid speaking in public does not directly reflect varied allegiances; rather, it might suggest shyness or caution. Lastly, changing parties frequently might indicate indecision, but without the specific visual representation of the mixed heels, it lacks the immediate signifier that Reldresal would notice. The duality of the heels serves as a clear metaphor for the heir’s internal political struggle, making it a poignant observation by Reldresal.