The following sentence can be added to paragraph 2 of the passage. Rather,

A. ……Invisible elements of culture are important to us.

B. …….. When we meet other people whose invisible cultural assumptions differ from those we have learned implicitly, we usually do not recognize their behaviour as cultural in origin.

C. ………….

D. …… For example, how long we can be late before being impolite, what topics we should avoid in a conversation, how we show interest or attention through listening behaviour, what we consider beautiful or ugly- these are all aspects of culture that we learn and use without being aware of it.