Answer:
The answer is D. to promote free trade.
Explanation:
World Trade Organization is a union of 164 states that was formed on 1st of January 1995.
By mid 1990's, the internet and the e-commerce was booming, and the global political environment was facilitating the international trade. Especially with the collapse of the Soviet Union in 1991, and the subsequent weakening of the communist countries.
The rising international trade required an international body to set out guidelines, rules and regulations to function the international trade more smoothly and effectively.
Because of this, the WTO was born and it is still in operation, contributing to the development of international trade immensely.
