Answer:
National Labor Relations Board (NLRB)
Explanation:
Sean should report his concerns to the National Labor Relations Board (NLRB). Among other functions, such as the protecting the rights of most private-sector employees to join together, with or without a union, to improve their wages and working conditions, safeguarding employee's rights to organize and to decide whether or not to have unions serve as their bargaining representatives with their employers. the NLRB which was founded in 1935, provides legal protections for employees who seek to organize a union to represent their interest in their place of works.