Today, the economic systems of most nations could most accurately be classified as:

a. pure capitalism.
b. pure socialism.
c. command economies.
d. mixed economies.

D.mixed economies.

Explanation:

A mixed economy is a mix of pure capitalism and command economy.

In a pure capitalist economy, the means of production are privately owned. The market forces make production decisions.

In a command economy, the means of production is owned by the government. Government males all production decisions.

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