RRB Group-D Model Paper 12 with answers for online practice

The statements below are followed by two conclusions labeled I and II. Assuming that the information in the statements is true, even if it appears at variance with generally established facts, decide which conclusion(s) logically and definitely follow(s) from the information given in the Statements:
1) All knights are nuns.
2) All nuns are men.
Conclusion:
I. All men are knights.
II. All knights are men.