Final answer:
The passage does not provide the specific number of warriors that went to fight the dragon.
Step-by-step explanation:
Based on the information provided, we cannot determine the exact number of warriors that went to fight the dragon. The passage by Sun Tzu talks about the cost of raising an army of 100,000 men, but it does not specify the number of warriors in this specific scenario. Therefore, we cannot determine whether A) 10, B) 100, C) 1,000, or D) 12 warriors went to fight the dragon.