Poststructuralist thought begins its assumption by questioning the traditional assertions that there is an outer place from which the world can be observed objectively and theories can be neutral. But this is not possible according to the poststructural approach. As Edkins says, scholar must be a Godlike detachment or have otherworldliness for this assumption to be possible. Because, scholars of IR are necessarily participants in the world politics, not independent observers. So neither theorists nor theories which consist of ideas can not be politically neutral contrarily they do have a political and social impact. From this point of view, it is seen that poststructuralist thought has a lot in common with the post-empricisim and assumptions of Frankfurt School in critical theory. All of these approaches share similar ideas about the central role of languge to the construction of social life, the historicity of knowledge (it means knowledge is related with power and is historically produced within socio-cultural structures) and rejection of the idea of universal (timeless and spaceless) knowledge. In fact, as stated by Robert Cox, one of the prominent names of Frankfurt School, “theory is always for someone and for some purpose”. For this reason they reject the possibility of value-free social analysis. In other words, theoretical knowledge is not independent from the values, thoughts and ideological beliefs of the theorist. As can be understood from the information given, the correct answer is E. All ideas in the answer choices are shared by by postsructualism, post-empricism and Frankfurt School.