Answer:
The correct answer is option B.
Explanation:
The market for oranges is perfectly competitive. An increase in the demand for oranges will cause the demand curve to move to the right. This rightward shift in the demand curve will cause the equilibrium price and quantity to increase.
At higher price, the producers will supply more oranges, because they will earn more profits. The supply of product is positively related to its price. So at higher price of oranges, more quantity will be supplied.