Which of the following became common after the 1933 National Industry Recovery Act was no longer in effect? Union members interrogated and blacklisted employers.
Employers had problems finding workers because of low pay.
Union members pressured employers for higher pay.
Employers interrogated and blacklisted union members.

Correct

Employers interrogated and blacklisted union members.

Explanation:

The National Industry Recovery Act was a policy of President Roosevelt which he enacted during the great depression in America. The aim was to regulate industry for fair wages and prices that would stimulate economic recovery.

Despite the noble cause of the policy, it was widely rejected by Americans due to some reasons. For example, The Act encouraged union organizing, which led to significant labor unrest.

c) they were beaten and fired from their jobs.

those who allied with france gained land and power.