Answer:
A decrease in the demand for goods and services; an increase in the supply of goods and services.
Step-by-step explanation:
In the case of the unhealthy economy, if the price is fall so it is because of reduction in the demand of the products and services while on the other hand if there is a healthy economy and now the price is fallen so it is because of the supply of the goods and services are rised up.
Therefore the last option is correct
And, the rest of the options are incorrect