What term describes a marketable item or consumer object that is supplied due to demand?

The term "commodity" refers specifically to a marketable item or consumer object that is produced to satisfy demand in the marketplace. Commodities are often basic goods used in commerce that are interchangeable with other goods of the same type. Their value is driven by supply and demand dynamics within the market, making them fundamental to economic activity.

In contrast, the other terms have distinct meanings that differentiate them from the concept of a commodity. A "product" is a broader term that encompasses any item that is manufactured or refined for sale, including both commodities and more complex items. A "service" represents intangible offerings provided to consumers, such as maintenance or educational services, and does not involve tangible goods. An "asset" typically refers to a resource owned by an individual or entity that has economic value, which may or may not directly relate to market demand like commodities do.

Thus, in the context of the question, 'commodity' accurately defines a marketable item produced in response to demand, highlighting its importance in economic transactions.