Concept:Judicial review is the power of a court to declare any law unconstitutional if it conflicts with the Constitution.
Explanation:The 1963 Republican Constitution made the Supreme Court the highest court in Nigeria.
It vested the power of judicial review in the Supreme Court.
This means the Supreme Court could examine Federal and Regional laws and nullify any that contradicted the Constitution.
The President, the Chief Justice, and Parliament did not possess this power.
Therefore, judicial review was a function of the Supreme Court alone.
Answer:Supreme Court (Option C).