Which of the following acts would be considered illegal?

The selection that encompasses blockbusting, steering, and redlining as illegal acts is the most accurate because all three practices are prohibited under federal and state laws aimed at ensuring fair housing and preventing discrimination.

Blockbusting refers to the practice of inducing homeowners to sell their properties at lower prices by suggesting that a certain racial or ethnic group is moving into their neighborhood, thereby creating fear and urgency. This not only disrupts communities but perpetuates segregation and discrimination based on race or ethnicity.

Steering involves guiding potential homebuyers or renters toward or away from certain neighborhoods based on their race, color, religion, gender, or other protected characteristics. This practice limits the individual's choice of housing and reinforces patterns of segregation.

Redlining is the discriminatory practice of refusing to offer financial services to residents in certain neighborhoods, often based on their racial or ethnic composition. This results in systemic disinvestment in those communities, preventing residents from building wealth and access to resources.

These acts are all forms of housing discrimination and go against the principles of the Fair Housing Act, which promotes equal opportunity in housing regardless of race, color, religion, sex, or national origin. Therefore, identifying all three practices as illegal aligns with the current understanding and enforcement of fair housing laws.