During his confirmation hearing, Chief Justice John Roberts stated that Roe v. Wade (1973) "is the settled law of the land." This statement suggests that in a case that challenges the constitutionality of legislation restricting privacy and reproductive rights, which of the following should be a key factor in the court’s ruling?
a. Briefs submitted by interested parties
b. Contemporary societal norms
c. The consensus of the other justices
d. Reliance on legal precedent