What does Roderick's act of entombing Madeline in Edgar Allan Poe's 'The Fall of the House of Usher" represent?
A. his impulsive nature, driven by uncontrollable impulses
B. his unconscious need to bury undesirable parts of himself
C. his inability to distinguish between real life and fiction
D. his obsessive need to become the sole Usher descendant
E. his revulsion toward his sister, who has long been his only companion