Answer:
The correct answer is option B. "It forced China to be less secretive".
Step-by-step explanation:
China joining the World Trade Organization (WTO) in 2001, was a keystone in the world economy because it opened this country to more exports and imports. In order to join the WTO, China had to make significant changes in the way the economy was handled in that country. Particularly, China was forced to be less secretive and correct certain concerns linked to transparency both internally and around the world.