In keynesian range of aggregate supply curve, higher demand for consumer goods result

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