Answer :
The correct answer is A) Ukraine.
The region that has experienced an ongoing struggle with Russia for its independence is Ukraine.
On August 24, 1991, Ukraine declared its independence from the Soviet Union. The problem today with Russia is the continuing consequences of the territorial dispute over the Crimean peninsula. In 2014, Russia annexed that region to its territory. And then in November 2018, Russian troops intercepted three navy boats from Ukrania off Crimea. This represented another step in the endurance of conflicts between the two countries.