Azerbaijan, which was once a part of the Soviet Union (USSR), which of the following is its capital?

Correct option is C

The capital of Azerbaijan is Baku. Baku is located on the Caspian Sea and is the largest city in Azerbaijan. It is also a major cultural, political, and economic center in the country. Azerbaijan was part of the Soviet Union until its independence in 1991, and Baku has since grown to become one of the most important cities in the Caucasus region.

Information Booster:

• Baku is known for its oil industry, historical sites, and modern architecture.
• The city hosted the 2015 European Games and has several UNESCO World Heritage sites.
• The Flame Towers, one of Baku's landmarks, represent Azerbaijan's rich cultural heritage and modern developments.

Additional Information:

• Ulaanbaatar is the capital of Mongolia.
• Kyiv is the capital of Ukraine.
• Tashkent is the capital of Uzbekistan.