Correct option is B
Statement: "Computer is one of the greatest innovations of mankind."
Conclusions:
Conclusion I: "No other innovation is better than computer."
The statement only says that the computer is one of the greatest innovations, not necessarily the best or better than all others. Therefore, Conclusion I does not logically follow from the statement.
Conclusion II: "Computers have benefitted mankind."
Since the statement describes the computer as one of the greatest innovations, it implies that it has a significant positive impact. Thus, Conclusion II logically follows from the statement.
Correct Answer: (b) Only conclusion II follows.