What law created the right$-$to$-$work? option, so states could exempt themselves from union shop and agency shop provisions?

The National Industrial Recovery Act, $1933$

The Labor Management Relations Act, $1947($The Taft$-$Hartley Act$)$

The Labor Management Reporting and Disclosure Act, $1959($The Landrum$-$Griffin Act$)$

The Norris LaGuardia Act, $1932$

The National Labor Relations Act, $1935($The Wagner Act$)$