Final answer:
Auden is described as a versatile writer due to his ability to use varied registers, tones, and styles in his compositions and convey complexities through his writing.
Step-by-step explanation:
Auden is described as a versatile writer because of his ability to use varied registers, tones, and styles in his compositions. He can say multiple things at the same time, question his own assertions, express contradictions, and convey complexities through his writing. Auden's versatility is evident in his works where he combines sense and wit, adapts words and phrasing to suit different characters, and consistently demonstrates strong awareness of the rhetorical situation.