The modern people like traveling now because______.
A. it can bring us more knowledge
B. it can make us rich
C. they have too much money
D. it is a good idea
此题为细节题。答案在第三段内;Travelling is a good idea to us because we can get more about knowledge。现代人喜欢旅游是因为可以从旅行中开阔眼界,增长知识。