Three statements are followed by conclusions numbered I, II. You have to consider these statements to be true, even if they seem to be at variance with commonly known facts. Decide which of the given conclusions logically follow/s from the given statement.
Statements:
(I) Some leaves are trees.
(II) All stones are grain.
(III) Some grains are leaves.
Conclusion
(I): All grains are trees.
(II): Some leaves are stones.

(I) Some leaves are trees.
(II) All stones are grain.
(III) Some grains are leaves.​
From the given statements Venn diagram will be: 

(I): All grains are trees.(false because its just a possibility.)
(II): Some leaves are stones.(false, its also false because its also just a possibility.)

Thus, correct option is (b).