A 'good answer' in the context of the UPSC mains exam must be structured, coherent, and directly address the question. It should begin with a clear introduction, followed by a well-organized body that presents arguments or analyses supported by relevant facts and examples. Candidates should avoid unnecessary jargon and focus on delivering clarity and precision. The conclusion should summarize key points while providing a critical perspective or a way forward. Additionally, answers should reflect an awareness of current affairs and incorporate diverse viewpoints to demonstrate comprehensive understanding.