choices.label: A B C D
choices.text: yak:kenya lion:mongolia koala:australia camel:vietnam
explanation: the animal unique to "china" is the "panda", which is the national treasure of "china". the animal unique to "kenya" is not the "yak", and the "yak" is not the national treasure of "kenya". animals unique to "mongolia" are not "lions", nor are they national treasures of "mongolia". the animal unique to "australia" is the "koala", which is the national treasure of "australia". "camel" is not an animal unique to "vietnam", which is inconsistent with the logic of the query.
relation: panda china R3.10
relation: koala australia R3.10