Effective supply is the total amount of a commodity
- from a single producer
- in the warehouse of producers
-
offered for sale at a market place
- produced for the market
The correct answer is: C
Explanation
In economics, effective demand (ED) in a market is the demand for a product or service which occurs when purchasers are constrained in a different market. it is the Quantity of a good or service that consumers are actually buying at the current market price.