State the difference between a movement along the demand curve and a shift in the demand curve.

State the difference between a movement along the demand curve and a shift in the demand curve.

• A. Movement along D occurs when price changes; shift occurs when non-price determinants change, altering quantity demanded at each price.
• B. Movement along D occurs when non-price determinants change; shift occurs when price changes.
• C. Movement along D is a change in quantity supplied; shift is a change in supply.
• D. Movement along D occurs due to income changes; shift occurs due to substitutes.

Answer: (A)