Answer:
The correct answer is option b.
Step-by-step explanation:
The supply curve is an upward sloping curve. It is upward sloping because of the law of supply which states that there is a positive relationship between price and quantity supplied.
When there is an increase in the quantity supplied at each possible price it implies that the overall supply has increased. It is shown by a rightward shift in the supply curve.
An increase in supply is caused because of changes in other factors that affect supply while the price of the product does not change.