Which of the following property of language enables language users to overcome the barriers caused by time and place, due to this feature of language, speakers of a language are free to talk about anything in any situation?
Transferability
Duality
Displacement
Arbitrariness
答案及解析：本题考查语言的特征。由题干中的关键词“overcome the barriers caused by time and place”可知应选C，综上，C选项正确。A选项，可转移性，可转让性，并非语言的特征，故排除。B选项，二重性，故排除。D选项，任意性，故排除。故正确为C。
