Concept:Commerce connects producers and consumers by making exchange possible.
Explanation:Commerce ensures that goods produced in different places reach people who need them.
It includes trade and all activities that support trade, such as banking, insurance, transport, and warehousing.
These activities help goods move from producers to consumers smoothly.
They also enable individuals and firms to exchange goods and services easily.
Thus, the most important function of commerce is to facilitate exchange.
Answer:C. facilitating exchange among individuals and firms.