I have a feeling that the answer to your question is letter C.
I hope I have answered it correctly for you.
Answer:
He calls himself Archibald Nichols when he first arrives at Aunt Sally's in chapter 33.
Explanation:
The answer is D: The search for self.
Although this is not an exclusively literary modernist theme, it sure was one of the main themes that Virginia Woolf, one of the most notable modernist writers, developed. Throughout this novel, and specifically in the excerpt cited, Mrs. Dalloway, as well as many other female and male characters, continually expose their train of thoughts (“stream of consciousness” as it usually is called in literary studies) as the struggle to identify their personal subjectivity, showing a constant struggle and an intermittent quest for one´s own self.