Read this excerpt from Robert Browning’s “My Last Duchess.” Which of these best describes the tone of these final words of the speaker concerning the duchess?

A. uh
B. no
C. wow
D. attractive

The options given are not appropriate for describing a tone. A tone could be defined as the attitude or approach that the author or speaker has towards the subject or audience. Therefore, without the excerpt, it is impossible to determine the tone of the speaker's final words concerning the duchess.

To accurately determine the tone of the final words in Robert Browning's "My Last Duchess," it would be helpful to have the excerpt provided. Could you please provide the specific lines or words you are referring to?