Final answer:
The provided text indicates that Arthur was quite young when he became king, while the other options are not substantiated by the text.correct option in the final answer is C)
Step-by-step explanation:
Based on the information provided, to learn that Arthur was quite young when he became king, one would need to refer to the text rather than the images.
Details such as the nobles kneeling before Arthur, commoners acknowledging his right to rule, or a comparison of ages between Arthur and the nobles are not explicitly stated in the provided passages.
These details are crucial for understanding social and political dynamics of the Middle Ages, such as the closed hierarchical system, primogeniture, and the importance of Magna Carta in establishing that everyone, including the king, was subject to the law.
Therefore, the correct option in the final answer is C) Arthur was quite young when he became king.