Why did rome and carthage become mortal enemies rome allied itself with egypt carthage closed the ports under its control to foreign vessels carthage joined with the gauls in sacking rome the romans were intolerant of the religious practices of carthage

So base on the question that ask to choose among the following choices that states the reason why rome and carthage become mortal enemies and base on my research and further understanding about the said question, I would say that the answer would be that the romans were intolerant of the religious practices of carthage. 

It taught people how to live a good life, but not what to believe.