challenge: What was the outcome of the full frontal assault on the forces of Osman Digna on 8 April?
  
  A. The battle was a stalemate, with both sides suffering heavy casualties
  B. The Anglo-Egyptians emerged victorious, with significantly fewer casualties than the Mahdist troops
  C. The Mahdist forces were able to outflank the Anglo-Egyptians, leading to a decisive Mahdist victory
  D. The Mahdist forces successfully repelled the attack, forcing the Anglo-Egyptians to retreat
  Answer: 