This question doesn't provide any specific information or context, so it is difficult to determine the correct answer without more details. However, we can analyze the given options and try to make an educated guess.

a) No information is provided about option 'A', so we cannot determine if it is the correct answer or not.

b) Option 'B' is stated as the correct answer. However, since no explanation or reasoning is given, it is unclear why this option is considered correct.

c) No information is provided about option 'C', so we cannot determine if it is the correct answer or not.

d) No information is provided about option 'D', so we cannot determine if it is the correct answer or not.

Without any further context or explanation, it is impossible to definitively determine which option is correct. It is important to note that providing additional information or clarifying the question would greatly help in finding the correct answer.

In conclusion, based on the given information, option 'B' is indicated as the correct answer. However, without any explanation or justification, it is difficult to determine why this option is considered correct.