<span>A)“the silken sad uncertain rustling”
B) “purple curtain”</span><span>D) “to still the beating of my heart” I would say these three appeal to the senses so that in A it would be mostly hearing ie the rustling and in B it is sight for the color purple and D it is to do with "the beating of the heart" which would also be perceived by hearing. </span>
The answer to your question is B.
The correct answers should be <span>b. The part of speech
However, pronunciation can often be found and word's origin sometimes.</span>