The supply curve is a ______ sloping curve.

• A. downward
• B. vertical
• C. upward
• D. horizontal

Answer: (C)

Verified step by step guidance

1. Understand that the supply curve represents the relationship between the price of a good and the quantity that producers are willing to supply.
2. Recall the law of supply, which states that, all else equal, an increase in price leads to an increase in quantity supplied.
3. Recognize that this positive relationship means the supply curve slopes upward from left to right on a graph where price is on the vertical axis and quantity supplied is on the horizontal axis.
4. Note that a downward sloping curve would imply that higher prices lead to lower quantity supplied, which contradicts the law of supply.
5. Therefore, the supply curve is an upward sloping curve.