Which of the following features of Robert Browning’s “My Last Duchess” make it classifiable as a Victorian poem ?

Which of the following features of Robert Browning’s “My Last Duchess” make it classifiable as a Victorian poem ?

A. It has a regular rhyme scheme (aa/bb/cc/dd…), which is sustained throughout the poem.
B. It is primarily a narrative poem.
C. It is concerned with conventional 19thcentury relations between a man and a woman.
D. All of these answers