Before we carved pumpkins, the Irish chiseled creepy faces onto turnips. Pumpkins with ghoulish faces and illuminated by candles are a sure sign of the Halloween season. The practice of decorating jack-o'-lanterns originated in Ireland, where large turnips and potatoes served as early canvasses.
The type of economy that the forces of supply and demand typically drive prices is a market economy.
The correct answers would be the second and third one