Final answer:
McDonald v. City of Chicago and Malloy v. Hogan both deal with incorporation of rights to the states, but McDonald v. Chicago is related to gun control and the Second Amendment.
Step-by-step explanation:
The cases of McDonald v. City of Chicago and Malloy v. Hogan differ significantly in their legal content. The correct answer is B) Both cases are related to gun control. McDonald v. Chicago dealt with the constitutionality of gun bans in Chicago and Oak Park, Illinois, extending the Second Amendment protections to the states via the Fourteenth Amendment. On the other hand, Malloy v. Hogan addressed the issue of incorporating the Fifth Amendment's protection against self-incrimination for state cases, which is unrelated to gun control.