Answer:
C) Marbury vs. Madison.
Step-by-step explanation:
Plessy vs Ferguson established that state-mandated segregation did not violate the 14th Amendment, which states that no laws should abridge a person's privilege.
Brown vs. Board of Education established that separate but equal is inherently unequal, and that racial segregation in public properties is unconstitutional.
Loving vs Virginia established that states cannot ban interracial marriage, and stated that it is unconstitutional.