- AStatement I alone is sufficient but Statement II alone is not
- BStatement II alone is sufficient but Statement I alone is not
- CEither statement alone is sufficient
- DBoth statements together are needed (neither alone is sufficient)
Step-by-Step Solution
From I, P and Q share the same mother and P is male, so P is the brother of Q. From II, P could be Q's brother or sister since P's gender is unknown, so II alone fails.
Answer: A) Statement I alone is sufficient but Statement II alone is not