Answer:
The correct answer is letter "A": National Labor Relations Board.
Explanation:
The National Labor Relations Board (NLRB) is a federal agency that aims to grant the requirements for employees to decide whether they want to form a union at work so they can act as a bargaining force. Workers have the right to claim in front of the NLRB in case the company they work for does not allow them to make use of their ability to join o form a union, employees having the ability to do so anonymously.
