Which of the following is the longest river in Europe?

The Volga River is considered the longest river in Europe because it stretches over a length of approximately 2,294 miles (3,692 km), making it the longest river on the continent. It flows through several countries including Russia, where it originates, and passes through major cities such as Moscow, before draining into the Caspian Sea. The river has historically played a significant role in Russian culture and economy, serving as a vital transportation route and a source of water for irrigation and industrial purposes.