Answer:
B) Supply and demand.
Explanation:
The theory of supply and demand determines the relationship between the supply of a given commodity and the demand for that good. There are many variables that impact economies at both the microeconomic and macro-economic stages. Production capacity, manufacturing costs such as labor and resources, and the number of rivals have a significant effect on how much supply companies can produce. The number of options available, customer expectations and improvements in the pricing of similar goods have an effect on demand.
Im pretty sure its the equater but i might be wrong
