Answer:
Among the options given on the question the correct answer is option B.
Mexican American
Explanation: The Mexican American was the ethnic group who fought for the immigration policy reform during 1960s. Because after the second world war there was a internment of Japanese in America as they were involved in the World War ll. There were a lot Mexican American workers in the America who took a large portion in the labor group.
However,the newly immigration policy was not favorable for the Mexican American workers. There was thousand of Mexican who were waiting on the other side of the border to get immigrated in the USA.
But the immigration law was not suitable for this. As a result the Mexican American workers fought to reform the policy.