This question belongs to the UPSC category and is asking for the correct answer among the options provided. Based on the given information, the correct answer is option 'B'.

Explanation:
- To provide a detailed explanation, it is necessary to have more context about the question. Unfortunately, the question does not provide any additional information or context.
- Therefore, it is not possible to provide a specific explanation for why option 'B' is the correct answer without any further information.
- It is important to note that without the necessary context, it is not possible to determine the correct answer or provide a meaningful explanation.
- UPSC questions are known for their complexity and require a thorough understanding of the subject matter.
- It is recommended to refer to the official UPSC resources, study materials, or consult with subject matter experts to gain a better understanding of the topic and the correct answer.

In conclusion, without additional context or information about the question, it is not possible to provide a detailed explanation as to why option 'B' is the correct answer. It is important to refer to official UPSC resources for accurate information and clarification.