Answer: Option B
(i) All pages are markers --> Universal Affirmative (A - type).
(ii) Some fruits are apples --> Particular Affirmative (I - type)
(iii)No book is a page --> Universal Negative (E - type).
(iv) Some books are not pages --> Particular Negative (O - type).
All locks are keys
Some keys are pockets.
A + I => No conclusion
Conclusion II is Converse of the second Premise.