An increase in demand for burgers . a. results in an increase in quantity demanded at every price. b. results in a movement upward and to the left along a demand curve. c. shifts the demand curve to the left. d. results in a movement downward and to the right along a demand curve.

The correct answer is letter "B": results in a movement upward and to the left along a demand curve.

Explanation:

When the demand for a god or service increases, so does its the price moving the demand curve upwards. Then, the increase in price will cause a decrease in quantity demanded which will move the demand curve to the left -by demand law. It is important to consider that quantity demanded and demand are not the same and have totally different impacts in front of changes in price.

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