Final answer:
Option (b), It is false that unions received favorable public opinion after World War II because of their adherence to the 'no strike pledge' during the war and modest wage requests after.
Step-by-step explanation:
Unions received favorable public opinion after World War II is a false statement. While unions may have adhered to a "no strike pledge" during World War II, the period after the war was not characterized by modest wage requests or widespread favorable public opinion. Although the National Labor Relations Act of 1935 boosted union membership by giving workers the right to organize, the subsequent Taft-Hartley Act of 1947 made it more challenging for unions, marking a decline in union membership.
During the war, unions agreed to a no-strike pledge to support wartime production. However, after the war, labor conflicts increased as workers sought to improve their earnings and working conditions, leading to numerous strikes. Following WWII, the government's stance towards unions became less favorable with the passage of the Taft-Hartley Act, allowing states to let workers opt out of unions. This shift in legislation illustrated a less supportive legal environment for unions compared to their status during the war.