Final answer:
The quote from 'Allegory of the Cave' that best supports the theme of acquiring true knowledge by questioning perception is 'Questioning the reality of the shadows led to enlightenment.' This emphasizes the importance of questioning and seeking beyond appearances to reach understanding.
Step-by-step explanation:
The Allegory of the Cave by Plato is a profound philosophical work that metaphorically discusses the importance of questioning one's perception to acquire true knowledge. The quote that best supports the idea that 'acquiring true knowledge requires questioning one's perception' from the Allegory of the Cave is 'Questioning the reality of the shadows led to enlightenment.'
This is conveyed through the narrative of the prisoner who escapes the cave and, after being initially blinded, comes to understand the true source of the shadows and the nature of reality itself. Through this metaphor, Plato suggests that the journey to knowledge is a process of questioning and understanding beyond superficial appearances.
Option B, 'Those who ventured outside the cave gained knowledge of the true world,' also aligns with the theme, but it implies that simply going outside the cave leads to knowledge, rather than the act of questioning one's perceptions. Option A does not directly support the theme as it states the prisoners' initial belief in the shadows but does not mention the process of questioning. Lastly, option D merely describes the prisoners' contentment with their understanding, which does not support the theme of questioning perceptions to gain knowledge.
Therefore, option C is the best choice since it directly relates to the theme of questioning leading to knowledge and enlightenment, which is the essence of Plato's allegory.