How did the second new deal create a way for workers to exercise their rights in the workplace?

The correct answer is:

Through the passages of the 1935 National Labor Relations Act.

The National Labor Relations Act (NLRA) was enacted by Congress in 1935 to defend the rights of both employees and employers, to promote collective bargaining, and to reduce some private sector labor and management methods, which were harmful to the general prosperity of workers, businesses and the U.S. economy.