Answer:
Apples supply increase imply new equilibrium at lower price, higher quantity. Demand downwards expansion on the curve itself is due to lower price.
Explanation:
Market is at equilibrium where Market Demand = Market Supply, & downward sloping demand curve intersects upward sloping demand curve.
If supply of apples increase & supply curve shifts rightwards, there is Excess Supply at previous equilibrium. Excess Supply creates competition among sellers, reduces new market price.
At lower price, demand expands & supply contratcs. New Equilibrium quantity is higher where new (rightwards shifted) supply curve intersects demand curve.
Quantity demanded increases (expands - downwards movement on demand curve) due to lower price, despite of no change in demand.