Final answer:
Employers with fewer than 15 employees would not be covered by Arizona's civil rights law prohibiting employment discrimination.
Step-by-step explanation:
Arizona's civil rights law prohibits employment discrimination based on race, color, religion, sex, and national origin. Employers with fewer than 15 employees would not be covered by this law, so option 1 is the correct answer. However, options 2, 3, and 4 would be covered by Arizona's civil rights law. Option 2, employers with more than 15 employees, would be covered by the law as it applies to all employers regardless of their size. Option 3, employers with a history of discrimination, would also be covered as the law aims to prevent discrimination in all cases. Option 4, employers with a unionized workforce, would still be covered by the law as it is not an exemption from the civil rights protections.