✔ Correct Answer: B. Usul al-Fiqh (Principles of Islamic Jurisprudence)
The correct answer to the question “Imam al-Shafi'i is credited with systematizing which science?” is Usul al-Fiqh (Principles of Islamic Jurisprudence). This question belongs to Islamic Studies. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.