What is the primary purpose of the International Organization for Standardization (ISO)?

The primary purpose of the International Organization for Standardization (ISO) is to promote international trade through the standardization of quality. This organization develops and publishes international standards that enhance consistency, safety, efficiency, and interoperability across various sectors and industries. By establishing these standards, ISO helps facilitate trade between countries by ensuring that products and services meet agreed-upon specifications. This not only helps in improving quality and safety but also builds consumer confidence and opens up markets, effectively promoting international trade.

The other options presented do not accurately reflect the core mission of ISO. For instance, while enhancing marketing strategies is important for businesses, it is not the focal point of ISO's purpose. Similarly, regulating pricing of goods or providing financial aid are outside the scope of ISO's responsibilities as a standards organization. The emphasis on quality standardization directly correlates with fostering international trade, making it the central purpose of ISO.