The headquarter of European Court of Justice (ECJ) are situated at__________?

A. Luxembourg
B. Paris
C. Strasbourg (France)
D. San Jose, Costa Rica

Court of Justice of the European Union ((CJEU)), also called European Court of Justice (ECJ), the judicial branch of the European Union (EU). Its basic mission is to ensure the observance and uniform application and interpretation of EU law within EU member states and institutions. Its headquarters are in Luxembourg.