Which author is associated with "Morte Darthur"?

"Morte Darthur" is a seminal work in Arthurian literature, attributed to Sir Thomas Malory. This collection of stories centers on the legends of King Arthur, the Knights of the Round Table, and the ideals of chivalry. Written in Middle English, Malory's text combines various tales of Arthurian lore, presenting a cohesive narrative that explores themes of honor, betrayal, and the quest for the Holy Grail.

Sir Thomas More, Geoffrey Chaucer, and Sir Philip Sidney, while significant figures in English literature, are not connected to "Morte Darthur." More is best known for "Utopia," a political work; Chaucer is famous for "The Canterbury Tales," which is a collection of stories reflecting the diversity of 14th-century English society; and Sir Philip Sidney is renowned for his poetry and the prose romance "Arcadia." Thus, the strong association of "Morte Darthur" with Sir Thomas Malory solidifies his position as the correct answer in this context.