Concept:Check each statement set for the two conclusions: whether "all lions can never be parrots" is forced, and whether "some elephants being zebra" remains possible.
Explanation:Here, "All lions can never be parrots" means it is impossible for all lions to be parrots, i.e. at least some lions are definitely not parrots.
Statement I:All elephants are lions and no lion is zebra, so elephants can never be zebra. Thus conclusion II is false.
Also, no definite relation forces any lion to be a non-parrot, so conclusion I does not follow.
Hence Statement I is rejected.
Statement II:All lions are zebra, but there is no negative relation between lions and parrots, so all lions could still be parrots. Conclusion I fails.
No tiger is zebra, but elephants that are not tigers are not restricted, so some elephants being zebra is possible. Conclusion II holds.
Since both conclusions are not satisfied together, Statement II is rejected.
Statement III:"Only a few zebra are lions" means some zebra are lions. Since no parrots are zebra, those zebra-lions are definitely not parrots. Hence all lions can never be parrots. Conclusion I follows.
There is no rule linking elephants and zebra directly, so some elephants being zebra is a valid possibility. Conclusion II follows.
Therefore Statement III is the only correct set.
Answer:Only statement III follows. The correct option is C.