challenge: What is the primary focus of the book 'Al-Sawa'iq al-muhriqah' written by Ibn Hajar al-Haytami?
  
  A. The biography of the Islamic prophet Muhammad
  B. The history of the first three caliphs
  C. A refutation of Shia Islam and defense of the first three caliphs
  D. The interpretation of Islamic law
  Answer: 