Final answer:
The passage provides evidence that Saladin's achievement was retaking Jerusalem from the Christians during the Crusades. The correct option is A.
Step-by-step explanation:
The passage provides evidence for the achievement of Saladin in which he retook Jerusalem from Christians. It describes how, under Saladin's leadership, the Muslims reconquered the Kingdom of Jerusalem, highlighting his success in restoring the city to Muslim control in 1187, after it had been held by the Crusaders since their victory in 1099.
The passage emphasizes the extent of Saladin's conquests and the promotion of Mohammed's law in contrast to the Christian religion, reflecting the historical impact of Saladin's military campaign during the Crusades and his effective defense of Muslim territories against European forces.