Answer:
A. If average hourly wages increases, this would incentivise workers to work more hours so as to earn more wages. As a result of increased hours, more cups of coffee would be produced. This would lead to a rightward shift of the demand curve
B. As a result of the warning, individuals would be less willing to buy coffee. This would lead to a leftward shift of the demand curve
C. If the price of coffee increases, it would lead to a upward shift up along the demand curve as people would be less willing to buy coffee.
Please check the attached images for the graphs
Explanation:
Only a change in the price of a good leads to a movement along the demand curve.
Other factors affecting demand lead to a movement of the demand curve either rightward or leftward
