Final answer:
The Fair Housing Act is the law that prohibits discrimination based on race in all real estate transactions without exception.
Step-by-step explanation:
The law that prohibits all discrimination based on race in any real estate transaction without exception is A) the Fair Housing Act. Originally known as the Civil Rights Act of 1968, this act explicitly banned discrimination in the sale, rental, and financing of housing. The Fair Housing Act forms a crucial foundation for ensuring equal access to housing and is essential in combatting residential segregation.
Contrary to this act, which deals specifically with housing, the Americans with Disabilities Act addresses discrimination against individuals with disabilities, and the Equal Credit Opportunity Act ensures fair access to credit unrelated to housing. The Civil Rights Act of 1964 played a foundational role in civil rights legislation by outlawing discrimination in public accommodations and employment, but the Fair Housing Act is uniquely focused on real estate transactions.