The Volta summarizes the ideas introduced in the octave of the sonnet is the following explanations she should use.
C. The Volta introduces a new idea that indicates a shift in tone from the octave of the sonnet.
Explanation:
It proclaims that this delight achieved by an idea of the reasonable ruler is sufficient to persuade the speaker that he is in an ideal situation than eminence.
Here, "state" is a play on words: it conveys the significance of enthusiastic prosperity, as it did prior in the ballad, and recommends that the adoration for the reasonable ruler makes the speaker so cheerful that all the abundance of a lord would not be better.
In any case, it likewise alludes to a country or a realm. The purpose behind his change is the idea of having the adoration for his cherished.