How does the structure of this Italian sonnet by Petrarch support its theme?

How does the structure of this Italian sonnet by Petrarch support its theme?

A.The structure of an octave and a sestet confirm that the poet is longing for love.
B.The overall structure conveys the theme of humanism, which considers worldly love to be superior.
C.The octave displays a musical quality, while the sestet has a jarring quality that shows conflict.
D.The octave builds an idea about love, while the sestet comments on that idea.