Answer: B. exporting trade companies
Explanation:
Trade unions are the organisations that are out in place so as to protect the interest of workers. They negotiate for better wages and salaries, provide job security, and seek better working conditions for their workers.
Export trading company is simply referred to as an independent company that helps in the provision of support services to the companies that are involved in the exportation of goods and services.
Commission house brokers is simply an individual who helps in representing people who have properties.
Therefore, the answer is exporting trade companies.
