The correct answer is: D. None of the above
A budget line is a line in a graph that shows all the combinations of goods and services that a consumer can afford given their income and the prices of the goods and services. It is also known as a consumption possibility curve or a price-consumption curve.
A demand line is a line in a graph that shows the relationship between the price of a good and the quantity demanded of that good. It is also known as a demand curve.
A price line is a line in a graph that shows the relationship between the price of a good and the quantity supplied of that good. It is also known as a supply curve.
A supply line is a line in a graph that shows the relationship between the price of a good and the quantity supplied of that good. It is also known as a supply curve.
In conclusion, a budget line is not the same as a demand line, a price line, or a supply line.