If advertising decreases the elasticity of demand for specific brand names of hard liquor, we would expect firms to be able to charge a larger markup over marginal cost

An increase in aggregate demand is shown by

A) a movement up along the aggregate demand curve. B) a leftward shift in the aggregate demand curve. C) the movement down along the aggregate demand curve. D) a rightward shift in the aggregate demand curve.

Which of the following CORRECTLY describes the above figure?

A) There is no relationship between x and y. B) There is a positive relationship between x and y. C) There is a negative relationship between x and y. D) None of the above answers are correct.