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 of (::) from the given alternatives based on the same Logic/Rule/Relation.

Tokyo : Japan :: ?

Havana : Cuba

Tokyo : Japan :: ?

The logic followed here is :

As

Tokyo is the capital of Japan

Similarly

Havana : Cuba

Havana is the capital of Cuba