ISO 9000 :

a. is more important for large global firms than small firms with domestic markets.

b. measures how companies have improved their environmental footprint.

c. is challenging to earn but is rewarding from a marketing viewpoint.

d. reflects an international excellence in quality management standards.

The correct answer is letter "D": reflects an international excellence in quality management standards.

Explanation:

A series of ISO (International Standardization Organization) 9000 Norms is a group of statements that specify elements that must integrate the Quality Management System of every organization and how it should operate to ensure the quality of the goods and services that an organization produces. These organizations could be companies that sell appliances, a bank, or an insurance company just to mention a few.  

The ISO as an organization was founded in 1947 is formed by normative organisms of almost every country in the world.

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answer; test-retest;