Which law most directly led to general motors sit down strike in 1936

Wagner act" is the law among the choices given in the question that most directly led to the General Motors sit-down strike in 1936. The correct option among all the options that are given in the question is the fourth option or option "D". I hope the answer comes to your help.

I do not know about the potato man he clearly looks like he is in distress trying to grow vegetables but he is so old that he kind of just gave up on life because his name is London Johnson from Hawaii actually he’s from the sticks and he has two kids a really really really old wife named all bellyPork belly but nugget pork belly button nuggets