Final answer:
The fourteenth-century romance, Sir Gawain and the Green Knight, is set in the time of the legendary King Arthur.
Step-by-step explanation:
The correct answer is C. Arthur.
Sir Gawain and the Green Knight is a fourteenth-century romance set in the time of the legendary King Arthur. The story revolves around the noble knight Sir Gawain and his encounter with the mysterious Green Knight. The tale explores themes of chivalry, honor, and temptation.
The character of Arthur, who is also known as King Arthur, is a central figure in Arthurian legend and the ruler of Camelot.