<span>Option D is the correct choice. It indicates, better than the other options, how the narrator is unable to enjoy a simple nights rest. The usage of "alas" shows that this was the final straw in the torment, not being able to sleep anymore. Compared to option A where the narrator is still able to state clearly that they are not mad. Option B only shows a dislike which doesn't stress the torment requirement from the question. Option C does show torment but it more so indicates the early stages of this happening.</span>
The italicized pronoun <em>himself </em>is used as a <u>reflexive pronoun</u>, that is its type. <span>A </span>reflexive pronoun<span> is normally used when the object of a sentence is the same as the subject: I hurt myself, for example. </span>
