Answer:
A. the Civil Rights Act of 1964.
Step-by-step explanation:
Discrimination in employment on the basis of race, color, religion, sex, or national origin was prohibited by the Civil Rights Act of 1964. It is a civil rights and labor law in the United States of America that prohibits discrimination, segregation in schools, and enforces the constitutional voting rights of the citizens.
The Civil Rights Act of 1964 was enacted by the 88th US Congress and signed into law on the 2nd of July, 1964 by President Lyndon B. Johnson.
The Equal Employment Opportunity Commission (EEOC) is a federal agency that was established by US Congress on the 2nd of July, 1965 based on the Civil Rights Act of 1964 so as to uphold and enforce all civil rights law against workplace discrimination by the employers or employees in the United States of America.
Equal Employment Opportunity Commission (EEOC) guidelines asserts that employers of labor wouldn't be held liable for national origin discrimination after implementing an "English-only" rule, if the employer can show that it is necessary for the following;
I. To communicate with customers who can speak English only.
II. To efficiently promote cooperative work assignments among teams (employees).
III. To enhance or facilitate safety during an emergency.