Which of the Following Illustrates Movement Along the Demand Curve

Multiple Choice

Which of the following illustrates movement along the demand curve?

A) Demand increases due to a drop in price.
B) Demand increases due to a competitor leaving the market.
C) Demand increases due to consumer tastes changing.
D) Demand increases due to a competitor increasing its prices.
E) Demand increases due to an increase in consumer incomes.