With Reference to the Difference Between a Change in Demand

With reference to the difference between a change in demand and a change in quantity demanded, which of the following is true?

A) If a good's price goes down, then demand for the good will decrease.
B) If a good's price goes down, then quantity demanded will increase.
C) If demand increases, then the demand curve will shift to the left.
D) If price rises and quantity demanded decreases, then the demand curve will shift to the left.