Which of the following crippling strikes ended successfully for the union during the many strikes that hit the U. S. during 1919?

A. United Mine Workers

B. Boston police officers

C. United States Steel

D. Pullman Car

The answer is letter A. United Mine Workers. United Mine Workers is a crippling strike that ended successfully for the union during the many strikes that hit the U. S. during 1919. It is a North American labor union representing coal miners.

Correct answer choice is:

A. United Mine Workers

Explanation:

The United Mineworkers of America may be an organization that began in 1890 by characterizing the requirements of miners, and alternative staff, inside the mines. The union used negotiation as a tool to attain its goals and enforced strikes once necessary. The first efforts of the United Mineworkers were to enlighten spiritually the matter of active metabolic process diseases within the coal fields.