Which of the following is true of Section 7(a) of the National Industrial Recovery Act? [Select all that apply.] Which of the following is true of Section 7(a) of the National Industrial Recovery Act? [Select all that apply.] It forbade employers from forcing workers to promise not to join a labor union as a condition of employment. It guaranteed workers the right to collective bargaining through their chosen representatives. It provided methods that could be used for diffusing labor disputes or ending strikes. It led to the sudden and dramatic increase in labor unions' size and militancy across various industries