During<span> the 1960s the availability of primary sources made historical research and</span>writing<span> possible and the debate became more vigorous. Historians Herbert Feis and Gar Alperovitz raised searching questions about the </span>first use<span> of nuclear weapons and their broader political and diplomatic implications.</span>
which issue is most likely to concern a labor union. the answer is minimum wage
Its is c because in history it talks about that
U.S. Labor union did not allow Chinese immigrants to become members.
<u>Explanation:</u>
Labor unions in the United States are organizations that are formed by workers from various industries that are recognized under "<u>US labor law</u>". Labor union opposed immigrants because they thought that the American workers will be undermined.
In the 1850’s, Chinese immigrants established Chinatowns in cities mainly on the western coast of the United States as U.S. Labor union did not allow Chinese immigrants to become members. In 1882, American government passed “Chinese Exclusion Act” to stop Chinese immigrants from becoming American citizens.
