Which institution oversees the implementation of EU laws and policies and ensures that EU treaties are upheld?A. European Court of JusticeB. European ParliamentC. European CouncilD. European Commission 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments