restricting African Americans' freedom
It protects against self - inscrimantion and bans being tried for the same criminal offence twice
The correct answer is A. To guarantee American commerce with China. The us sent troops to participate in the multinational force that fought the Boxer Rebellion in 1900 to support U.S. trade goals by helping to preserve China as a nation. The Open Door Policy is a term in foreign affairs initially used for the United States policy in the late 19th century and the early 20th century that allowed for a system of trade in China open to all countries. Recently it is used to open up China to foreign businesses that wanted to invest in the country.
Answer: Trade unions are organizations that represent the interests of workers.
Explanation:
Trade unions are an integral part of many industries and corporations around the world. Their task is to represent the interests of the workers. In the United States, the existence of a trade union was established by law in 1935. The unions negotiate with employers about wages, working conditions, benefits and work organization. The strongest unions in the world today are parts of the public sector, such as the police, teachers, civil servants and the like.