$($MA$)$ In the mid$-1970$s union participation in the private sector began to diminish. Which of the following are the two possible reasons cited for this by the text?

Group of answer choices

States failed to pass "right to work" laws that protected unions from employers.

Collective bargaining agreements failed to account for employer and employee support of union initiatives.

Employers learned to manage more fairly and provide better working conditions so unions became a non$-$factor. pick an answer

Employers were consistently hostile to unions and waged a number of political battles to undermine unions.

The labor laws were too weak to protect workers against employer attempts to discourage union formation.