Final answer:
Socrates does not defend Cephalus's definition but questions it to reveal its possible flaws. His goal is to stimulate critical thinking and self-reflection in his interlocutors.
Step-by-step explanation:
When considering whether Socrates defends or questions Cephalus's definition, we can conclude that B) Socrates questions Cephalus's definition by pointing out its flaws is the most accurate. Socrates, known for his Socratic method, engages in a dialectical process that involves questioning others to examine the validity and consistency of their beliefs. This technique is not meant to show his agreeing but to provoke critical thinking and to uncover any inconsistencies or false beliefs in the definitions and ideas presented by others, including Cephalus. One striking example of Socrates's approach is his conversation with Cephalus where he challenges the latter's definition of justice.
In the context of justice, Socrates does not simply agree with Cephalus's views but scrutinizes them to reveal their possible shortcomings. Instead of defending, he dissects the definition provided, prompting his interlocutor to refine or reconsider their stance. Hence, we can see that Socrates's goal is to stimulate self-reflection and a deeper understanding through his rigorous questioning.