The new Bank of India has been merged with which bank in 1993?

https://things-for-students.blogspot.com/2022/04/the-new-bank-of-india-has-been-merged.html
The new Bank of India has been merged with which bank in 1993?
(a)State Bank
(b)Central Bank
(c)Punjub National Bank
(d)Andhra Bank
Correct Answer: Punjab National Bank