Final answer:
Based on the context, the three cannibals who came to France likely found the food amazing due to the high esteem of French cuisine and the intrinsic role of food and wine in the French way of life.
Step-by-step explanation:
The question asks what the three cannibals who came to France found amazing. While there is no definitive answer provided in the context, we can surmise based on contextual clues that the aspect of French life they might have found most remarkable could have been the food. This assertion is supported by the longstanding global esteem for French cuisine and the importance of food and wine in the French way of life.
Each region in France boasts a suite of famous dishes that could be seen as a fascination for anyone unfamiliar with such a rich culinary tradition. The diversity in cuisines and the fact that food experiences significantly vary across cultures would likely lead people introduced to French cuisine – regardless of their backgrounds – to be amazed by the food.
It is also essential to recognize that the impact of French culture extends beyond cuisine, influencing various aspects of daily life, which could similarly leave a deep impression on newcomers to the country.