Question

why did the supreme court expand the incorporation of the bill of rights?
to ensure they always had the last word
to ensure equal treatment for all citizens
to ensure all naturalized people could be citizens
to ensure all legal cases came before the court

Explanation:

Incorporation doctrine applies federal Bill of Rights protections to state governments. The Supreme Court expanded this to guarantee that fundamental rights are enforced uniformly across all states, preventing states from denying citizens rights guaranteed at the federal level, which ensures equal treatment under the law for all U.S. citizens. The other options are incorrect: the Court does not act to hoard power, naturalized citizenship rules are separate from incorporation, and the goal is not to centralize all legal cases.

Answer:

B. to ensure equal treatment for all citizens