Choose the closest paraphrased version after the following sentence or the italicized part.
The difficulty when strangers from two countries meet is not a lack of appreciation of friendship, but different expectations about what constitutes friendship and how it comes into being.（ ）
A.正确答案A...but different ideas on the basic elements of friendship and how it is formed.
B....but different ways to establish friendship and how it is maintained.
C....but different understandings of friendship and how it works.
D....but different principles of friendship and how it develops.
