Answer:
B) there is a decrease in the quantity supplied of ice cream
Step-by-step explanation:
normal market supply curve provide the relationship between quantity supply and the price of the community.
In this question the ice cream is the quantity supply,Given a normal market supply curve for ice cream,
In case, surgeon general states that ice cream causes cancer, then there will be decrease in the quantity supplied of ice cream because the value(price) has decreased then the quantity supplied of ice cream decreases.