Final answer:
Increasing crime is not considered a primary force influencing the real estate market; instead, social, political, and economic factors are the main drivers.
Step-by-step explanation:
The answer to the question, "Which of the following is NOT one of the forces that influences the real estate market?" is option d, increasing crime. Real estate markets are generally influenced by three main forces: social, political, and economic factors. These forces shape the demand and supply, housing affordability, market trends, and property values. Increasing crime might impact localized real estate values but is not considered a primary force driving the overall market. In contrast, social (population growth, demographics), political (government policies, zoning laws), and economic (employment rates, interest rates) factors have broad and foundational impacts on real estate markets.