Step 1: Understanding the Question:
The phrasing "Market demand is known as" is somewhat ambiguous. It is most likely asking for the name of the process used to determine or estimate market demand, especially for a future period.
Step 2: Analysis of Options:
Based on the likely intent of the question:
(A) Demand forecasting: This is the systematic process of estimating the future demand for a product or service. Businesses engage in demand forecasting to plan their production, marketing, and financial activities. This fits the description of the process of "knowing" market demand.
(B) Real demand: This term refers to the actual quantity purchased by consumers in a past period. It is a historical figure, not the process of determining future demand.
(C) Supply: This is the quantity of a product that producers are willing to offer for sale. It is the opposite concept to demand.
Step 3: Final Answer:
The process of estimating and understanding market demand is known as demand forecasting. Therefore, option (A) is the most logical answer to the question's intent.