The population of the city of dublin mostly did in this timeframe
Your answer would have to be C) The end of Athens's Golden Age. Hope this answers your question.
pros:
developing countries gain access to new technologies.
healthcare access is improved through imperialism.
agriculture production is also improved.
defensive networks are created through imperialism.
cons:
imperialism almost always creates conflict.
exploitation is much easier through the imperialistic process.
it can be an expensive process to pursue.
imperialism creates conflicts amongst the strong.