a mixed market economy tends to exist under a democratic government that provides some regulation…

Brief Explanations:

A mixed - market economy combines elements of a market economy (private enterprise) and a planned economy (government intervention). A democratic government that provides some regulation allows for private economic activity while also having government oversight to correct market failures, ensure fairness, etc. A representative government that provides no regulation is more of a pure market economy. A communist government is typically associated with a more planned economy and not one that provides little regulation. A socialist government with a lot of regulation is more of a planned - heavy economy.

Answer:

A. democratic government that provides some regulation