What is this question asking me to write about?

“C.S. Lewis has said that Chaucer is “our foremost poet of joy” in the English language, and in this field he “has few equals and no masters.” Discuss how this applies to the ending of “The Knight’s Tale” from The Canterbury Tales.” Im Just wondering what the question is asking me to write, i dont need you to answer that question above; i just need to know what they want me to write.