Final answer:
In Arthurian legend, the chance for others to pull the sword from the stone after Arthur did so serves to establish the legitimacy of Arthur's right to be king. The correct option is c) To find a worthy king
Step-by-step explanation:
After Arthur pulls the sword from the stone, other people are given a chance to pull it between Christmas and Pentecost to find a worthy king.
This is a pivotal moment in Arthurian legend, where the act of pulling the sword from the stone is connected to the divine right to rule.
The period of time between the two holidays allowed a significant number of nobles to attempt the feat, confirming to the populace that Arthur's success was not a mere fluke.
The extension of this time was not just about making it a fair competition or increasing suspense and drama; rather, it emphasized the importance of the legitimate selection of a sovereign who is recognized by all as the true heir and ruler. The correct option is c) To find a worthy king