Question

read the excerpt from brown v. board of education.
in each of the cases other than the delaware case, a three-judge federal district court denied relief to the plaintiffs on the so-called \separate but equal\ doctrine announced by this court in plessy v. ferguson, 163 u.s. 537.
the supreme court cites these cases because it seeks to
describe the unique situation in delaware courts.
illustrate the racial biases of federal court judges.
cite specific legal rulings in order to generalize.
share the unique differences between the given cases.

Explanation:

To solve this, we analyze each option:

• Option 1: The excerpt focuses on cases other than Delaware, so not about Delaware's unique situation. Eliminate.
• Option 2: The excerpt doesn't discuss judges' racial biases. Eliminate.
• Option 3: The Supreme Court cites cases (using "separate but equal" from Plessy v. Ferguson) to generalize about the legal context of the cases, as citing specific rulings to support a broader argument (generalize) fits.
• Option 4: The excerpt emphasizes the commonality (denial of relief under same doctrine) rather than unique differences. Eliminate.

Answer:

cite specific legal rulings in order to generalize.