单选题 ______ means the lack of a logical connection between the form of something and its expression in sounds.
A. Abstractness B. Arbitrariness
C. Duality D. Displacement

【正确答案】 B
【答案解析】[考点] 语言学基本概念
语言的随意性说明语言在意义和声音上没有确切的逻辑关联。