B. In Iran and Saudi Arabia, oil companies are government owned and operated.
The statement that best describes a mixed economy is B. In Iran and Saudi Arabia, oil companies are government owned and operated. In a mixed economy, there is a combination of both private and government ownership of resources and businesses. In the case of Iran and Saudi Arabia, the oil industry is a major sector of the economy and is primarily controlled by the government. This shows a level of government intervention in the economy alongside private enterprises.