Answer:
A
Step-by-step explanation:
The Taft-Hartley Act provides for the following:
It allows the president to appoint a board of inquiry to investigate union disputes when he believes a strike would endanger national health or safety, and obtain an 80-day injunction to stop the continuation of a strike.
It declares all closed shops illegal.
It permits union shops only after a majority of the employees vote for them.
It forbids jurisdictional strikes and secondary boycotts.
It ends the check-off system whereby the employer collects union dues.
It forbids unions from contributing to political campaigns.