Answer:
The correct answer is option A.
Explanation:
A demand curve is downward sloping. This is because of the law of demand which states that price and quantity demanded are inversely related.
An increase in quantity demanded means that the there is a movement on the same demand curve to the right.
An upward movement to the left on the same demand curve shows a decrease in quantity demanded.
A leftward shift in the demand curve is an indicator of decline in demand.
A rightward shift in the demand curve shows an increase in demand.