Analyze the setup of a price-quantity graph and explain why alphabetical order is used to remember the layout.

• A. Alphabetical order is irrelevant to the graph setup
• B. Alphabetical order is used to remember that both axes are interchangeable
• C. Alphabetical order helps remember that price is on the Y-axis and quantity is on the X-axis
• D. Alphabetical order is used to remember that quantity is on the Y-axis and price is on the X-axis

Answer: (C)