The correct answer is A) Gave labor the right to bargain collectively.
The Wagner Act of 1935 protected employees right to protest. This right to protest was important, as it allowed workers to have power in terms of their working conditions and pay. This resulted in workers gaining the right of collective bargaining.
Collective bargaining refers to a negotiation between management and the laborers regarding working conditions, payment, time off, etc. This is usually done by a legal representative from a union and members of the board from a specific company.