As one of the central qualities of abstracts, what does “independency” mean?

As one of the central qualities of abstracts, what does “independency” mean?

A.It must make reference to any tables or figures in the paper.

B.It may stand independently and make sense without reference to the main text.

C.It must choose the exact words needed to get a precise meaning.

D.It must provide readers with a brief preview of the present study.

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