Which one of the following statements is correct?
An appeal shall lie to the Supreme Court from any judgment, decree or final order in a civil proceeding of a High Court in the territory of India if the High Court certifies under Article 134A that the case involves

A. A question of law

B. A question of law or fact

C. A substantial question of law or fact of public importance

D. A substantial question of law of general importance

Answer: Option D