Answer:
The correct answer is c. firm-level demand
Step-by-step explanation:
Demand can be defined as the quantity of goods and services that are acquired by consumers at different prices, at a specific unit of time (one day, one month, one year, etc.) since without a temporary parameter we cannot say if a Demand amount grows or decreases.
When a person chooses to buy some good, to meet his needs, he does so consciously, based on his criteria both objective and subjective; These conditions are modified according to the educational and socioeconomic level, sex, age, among other factors.