Three statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All birds are crows.
Some Crows are parrots.
No crow is a pigeon.
Conclusions:
I. No parrot is a pigeon.
II. Some birds are parrots.

​Statements:
All birds are crows.
Some Crows are parrots.
No crow is a pigeon.

From the given statements Venn diagram will be: 

​Conclusions:
I. No parrot is a pigeon → Does not follow.

No direct relation between parrot and pigeon.
II. Some birds are parrots → Does not follow.

​No direct relation between birds and parrot.

So, Neither conclusion I nor II follows.

Thus, the correct option is: (b)