What is the rhyme scheme of the excerpt from "The Raven"? And the silken sad uncertain rustling of each purple curtain Thrilled me--filled me with fantastic terrors never felt before; So that now, to still the beating of my heart, I stood repeating "'Tis some visitor entreating entrance at my chamber door-- Some late visitor entreating entrance at my chamber door; This it is and nothing more." A. ABCCBB B. AABBCC C. ABCBBB D. ABCBCC