Which field studies supply and demand, production, and distribution?

The correct choice is economics, as this field specifically focuses on the analysis of supply and demand, production, and distribution of goods and services. Economics seeks to understand how various factors influence the allocation of resources and the behavior of consumers and producers in the marketplace. It examines the mechanisms behind economic systems, market structures, and the impacts of governmental policies on economic performance.

In contrast, finance primarily deals with the management of money and investments, analyzing how financial resources are raised, allocated, and utilized. Business administration encompasses a broader range of disciplines including human resources, operations management, and organizational behavior, but does not focus specifically on economic principles. Marketing is concentrated on promoting and selling products or services, understanding consumer behavior, and developing brand strategies, rather than on the intricate dynamics of supply and demand. Thus, economics is appropriately designated as the field studying the foundational concepts of supply and demand, production, and distribution.