Which narrative poem explores the theme of the quest for the Holy Grail?
A. "The Rime of the Ancient Mariner"
B. "Sir Gawain and the Green Knight"
C. "Idylls of the King"
D. "The Love Song of J. Alfred Prufrock"
"Idylls of the King" by Alfred Lord Tennyson centers on the Arthurian legend and the quest for the Holy Grail.