This question belongs to the UPSC category and the correct answer is option 'B'. Let's break it down and explain why this is the correct answer.

The Question:
The question states that the correct answer is option 'B'. We need to analyze the given options and determine why option 'B' is the correct choice.

Understanding the Options:
To determine the correct answer, let's take a look at the given options.

Option 'A': This is the first option provided as a possible answer. We need to evaluate if this option is correct or not based on the given information.

Option 'B': This is the second option provided as a possible answer. We need to evaluate if this option is correct or not based on the given information.

Option 'C': This is the third option provided as a possible answer. We need to evaluate if this option is correct or not based on the given information.

Option 'D': This is the fourth option provided as a possible answer. We need to evaluate if this option is correct or not based on the given information.

Analysis of the Options:
Now, let's analyze each option and determine if it is correct or not based on the given information.

Option 'A': There is no information given about option 'A'. Without any context or explanation, it is difficult to determine if this option is correct or not. Therefore, we cannot consider option 'A' as the correct answer.

Option 'B': This is the correct answer according to the question. However, without further context or explanation, we cannot fully understand why option 'B' is the correct choice. We need more information to support this answer.

Option 'C': There is no information given about option 'C'. Without any context or explanation, it is difficult to determine if this option is correct or not. Therefore, we cannot consider option 'C' as the correct answer.

Option 'D': There is no information given about option 'D'. Without any context or explanation, it is difficult to determine if this option is correct or not. Therefore, we cannot consider option 'D' as the correct answer.

Conclusion:
Based on the analysis of the given options, we can conclude that option 'B' is the correct answer according to the question. However, without further information or explanation, we cannot fully understand why option 'B' is the correct choice. It is important to provide more context or details to support the answer.