The correct answer is C. The government
Step-by-step explanation:
The key feature of a planned economy is the strong influence and control of government in the economy. Indeed, in a planned economy it is the government the entity that decides on trade and production, this includes the prices of goods and the types of products that should be manufactured. Moreover, this does not occur in market economies because in these customers, produces and the law of supply/demand determine factors of the economy. According to this, in a planned economy prices are controlled by government.