Final answer:
The knight accepts the lesson of sovereignty and allows the old lady to choose for herself in 'The Wife of Bath's Tale,' which leads to her becoming both beautiful and faithful.
Step-by-step explanation:
In the “The Wife of Bath’s Tale” from Geoffrey Chaucer's The Canterbury Tales, the knight's response to the choice offered by the old lady on their wedding night is very significant. The old woman gives the knight a choice between having her old and ugly but loyal and true, or young and beautiful but without any guarantees of fidelity.
The knight, having learned the lesson that women desire sovereignty over their own lives, tells the old woman to choose for herself, thus granting her the authority she sought. This response pleases the old woman, and as a reward for giving her control over the decision, she then becomes both beautiful and faithful.