Kievan Rus was a loose federation of East Slavic and Finnic peoples in Europe from the late ... He extended his control from Novgorod south along the Dnieper river valley to protect trade from Khazar incursions ... In the south, in the area around Kiev, were the Poliane, a group of Slavicized tribes with Iranian origins
The answer would be C. Sweden seeks to encourage population growth, while India and China seek to discourage population growth. Hope this helps :)
The planet that takes the least time to revolve the sun is the closest planet so that would be Mercury.