State of academic writing in the phii context

Academic Writing in a Phii Context transform understandings about English as an international language for academic knowledge production. It challenges established views of the relations between scholarship, language and location, revealing the political issues which pervade the field. Academic Writing in Phii Context examines the impact of the growing dominance of English on academic writing for publication. In this context explored the ways in which the global status of English is affecting the lives and practices of multilingual scholars working in contexts where English is not the official language of communication, throwing into relief the politics surrounding academic publishing.

The option that best describes the underlined part of this sentence is D: "nonrestrictive clause".  

A non restrictive clause modifies or describes a noun in the sentence, but in a nonessential way to the meaning of the it. In this particular case, the canyon being formed by erosion doesn´t change the sense that it was a breathtaking sight to behold.

On the other hand, restrictive clauses limit or identify the nouns it describes and cannot be removed from a sentence without changing the sentence’s meaning.