Given,
Statements:
Conclusions:
1. No jockey is queen.
2. All queens are jockeys.
The least possible Venn diagram for the given statements is as follows,
1. No jockey is queen → False (It is possible but not definite)
2. All queens are jockeys → False (It is possible but not definite)
Conclusion I and II form a complementary pair.
Hence, the correct answer is Either conclusion 1 or 2 follows.