Words given on the left side of (::) are related with each other by some Logic/Rule/Relation. Select the missing word/word pair on the right side(::) from the given alternatives based on the same Logic/Rule/Relation.

Yuan : China :: Yen : ?

Japan

Logic here is :

Yuan : China

Yuan is currency of China .

Similarly ,

Yen : ?

Yen is currency of Japan.

Japan is correct answer.