Concept:Change in supply means a shift of the entire supply curve caused by factors other than the commodity's own price.
Explanation:A change in supply is caused by changes in production conditions, not by the price of the good itself.
Improved technology, lower cost of production, and government tax policies can all shift the supply curve.
For instance, improved technology increases supply at every price, while higher taxes may reduce supply.
The price of the commodity only affects the quantity supplied along the same supply curve.
It does not shift the whole supply curve.
Hence, the price of the commodity is not a condition for a change in supply.
Answer:C. the price of the commodity