The correct answer is option 3: Ukraine. Donetsk and Luhansk are regions in eastern Ukraine that have been in the news in recent years due to the ongoing conflict in the area. These regions are known as separatist regions because they have declared themselves independent from the rest of Ukraine. The conflict in Donetsk and Luhansk started in 2014 after Russia`s annexation of Crimea. Pro-Russian separatists in these regions sought independence and conducted referendums, which were not recognized by the Ukrainian government or the international community. This led to clashes between Ukrainian armed forces and separatist groups. The conflict has resulted in thousands of casualties and displacement of people from these regions. The situation in Donetsk and Luhansk is complex and involves political, ethnic, and territorial issues. It is an ongoing conflict that has yet to be fully resolved.