Final answer:
Title VII of the Civil Rights Act of 1964 prohibits discrimination in employment based on race, color, religion, sex, or national origin.
Step-by-step explanation:
Title VII of the Civil Rights Act of 1964 prohibits discrimination in employment based on race, color, religion, sex, or national origin. Therefore, Option A is not true as the act does not permit employers to hire job applicants exclusively based on nationality. Option B is true as the act applies to organizations with 15 or more employees. Option C is not true as the act explicitly prohibits employers from retaliating against employees participating in a proceeding against an employer.
Option D is not true as the act protects employees who oppose alleged illegal employment practices, not employers. Lastly, Option E is not true as the act does not permit employers to hire individuals based on gender and race without a bona fide occupational qualification (BFOQ).