Answer:
The correct answer is option b. "Sancho Panza can take up arms in self-defense against commoners"
Explanation:
The laws of chivalry are a set of rules that dictate what a knight and squire can do in order to remain in a chivalrous conduct, living by a code of honor. According to these laws a squire such as Sancho Panza is not allowed to help the knight Don Quixote in any battle, he is just allowed to take up arms in a self-defense situation and against commoners.