In which of the following Supreme Court cases did the

In which of the following Supreme Court cases did the Court declare that the Fourteenth Amendment only protected people from discrimination perpetrated by state governments, not by private individuals or entities?

a.  Plessy v. Ferguson (1896) 

b.  Civil Rights Cases (1883) 

c.  Ex Parte McCardle (1869) 

d.  Brown v. Board of Education (1954)