There are at least four important results of the Montreux Convention for Turkey as well as for international politics. First, Turkey restored the security of the straits and addressed a key security gap in its borders. The restoration of Turkish sovereignty over the straits helped Turkey regain its historical role as the armed guardian of the straits. Second, the renewal of Turkish authority in the straits granted Turkey a liberty to close the straits to foreign warships during a war. This increased Turkey’s strategic value in international arena forcing European powers to seek its friendship and avoid its enmity. Third, Turkey’s attachment to multilateral diplomacy helped Turkey gain a peaceful image internationally. Finally, the Montreux Convention won a good name for multilateralism and diplomacy that had been discredited through the revisionist policies of aggressive powers. Considering the explanations above, we see that all statements are true, so the correct answer is E.