A New Administrative Regulation Allowed the Social Security Administration to Charge

A new administrative regulation allowed the Social Security Administration to charge women for Social Security cards,yet enabled men to obtain the cards for free.A lawsuit was filed challenging the constitutionality of this new regulation.If you were a justice on the Supreme Court you would most likely:

A) review common law to see whether a precedent exists that violates the Fourth Amendment.
B) use statutory interpretation to clarify the law based on First Amendment considerations.
C) rule the regulation unconstitutional because it violates the Equal Protection clause.
D) let the regulation stand in the interest of justice and equity.