To properly answer this question, we need to evaluate the given options and determine which one is the correct answer. Let's analyze each option and explain why the correct answer is option 'B'.

a)
b)
c)
d)

Evaluation of the options:

a) - No information is provided about option 'a', so we cannot determine if it is correct or not. Therefore, we cannot choose this option as the correct answer.

b) - This is the correct answer. The question states that the correct answer is option 'B', so we can confidently choose this option as the correct answer.

c) - No information is provided about option 'c', so we cannot determine if it is correct or not. Therefore, we cannot choose this option as the correct answer.

d) - No information is provided about option 'd', so we cannot determine if it is correct or not. Therefore, we cannot choose this option as the correct answer.

Explanation of the correct answer:

Option 'B' is the correct answer because the question explicitly states that it is the correct answer. We can trust the information given in the question and select option 'B' as the correct answer without any further evaluation.

In summary, after evaluating all the options, we can conclude that option 'B' is the correct answer based on the information provided in the question.