Browning has presented the main theme of the poem "My Last Duchess" through another piece of art - paintings. The Duke shows his guest the art found in his mansion, and stops in front of the painting of his ex wife, the Duchess. That is when the whole poem actually starts, as we get to know details about her and the plot/main theme develops.
B. All of these Because you need to think of the central point, you need to know how long to make your essay, and you need to plan out your topic sentences and supporting details.
