Poststructuralist approach highligts how the sovereign states, even the liberal ones, construct themselves through violence and exclusion. Another important topic that poststructuralists focus on is identities. But, it is worth noting that poststructuralists, and constructivists constitute their analyses on different perspectives: Poststructuralists do not adopt an attitude that accepts identity’s causal effects on foreign policy even though identity is considered as one of potential causal influences on foreign policy in social constructivist approaches. The most important feature that differentiates poststructuralist approaches from other social theories, including constructivism, is that language/ discourse is the basis of its ontology. While constructivists are interested in what a state’s identity is and how it affects foreign policy, poststructuralists are interested in how any difference is marginalized by discourse as contrast, danger, or threat. As can be understood from the information given, the correct answer is E. All statements are correct related to the features that differentiate poststructualist approaches from other social theories in the context of International Relations.