首先很高兴你的这个问题能在这里问。我毕业两年半了，突然发现快到完全遗忘的边缘了。我是病假在家突然发现这个平台的，想拾起自己的专业与特长，尽管工作中用不到。
我刚刚翻看了工具书确认了一下，选择A
挨个说一下吧。cohesion---the gramatical/lexical relationship between the different elements of a text,This may be the relationship between different sentences or between different parts off a sentence.
coherence---the relationship which link the meaning of utterances in a discouse or of the sentences in a text. These links may be based on the speakers shared knowledge.
fluency---the features which give speech the qualities of being natural and normal.
accuracy---refers to the ability produce grammatically corracct sentences.
有不明白的可以追问。
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