Which explains why the 14th amendment did not protect against jim crow laws?

a- the amendment forbade african americans from becoming citizens and made them susceptible to unfair treatment.

b- the amendment prohibited state governments, not individuals and businesses, from discriminating against african americans.

c- the amendment pointed out that the constitution is not color-blind and favors the advancement of certain races.

d- the amendment declared that separate but equal facilities are against the laws established in the constitution.