Concept:The law of demand explains the inverse relationship between price and quantity demanded.
Explanation:The law of demand states that, other things being equal, an increase in price will cause quantity demanded to fall.
When price rises, consumers are less willing to buy the same amount at the higher price.
This is a movement along the existing demand curve and not a shift of the demand curve.
Therefore, an increase in price does not bring about an increase in demand or a decrease in demand.
A change in demand happens only when non-price factors, such as income, taste, or related goods, change.
Thus, the correct effect of a higher commodity price is a decrease in the quantity demanded.
Answer:Option A. A decrease in the quantity demanded.