What is domestic trade primarily characterized by?

Domestic trade is primarily characterized by the regulation by the country's laws and currency. This type of trade occurs within the borders of a single nation and is governed by that nation's legal framework, which includes regulations, trade agreements, and consumer protection laws. Additionally, domestic trade relies on the specific currency of that nation, which facilitates transactions and ensures consistency in pricing and valuation of goods and services exchanged.

In contrast, the other options relate to broader contexts or specific aspects that do not accurately define domestic trade. For instance, the concept of global exchange applies to international trade rather than domestic. Similarly, international trade laws and cultural practices are more relevant to global interactions rather than the transactions that occur solely within a country’s borders.