On 1 January 1986 Spain<span> and </span>Portugal<span> acceded to the European Economic Community</span>
Established the power of judicial review for the US supreme court and lower federal courts, judges determine wether or not a law is unconstitutional or not, which led to US involvement in the french british war in 1803
Oversight and public education are examples of "implied" Congressional functions, since although they are not explicitly mentioned in the Constitution, they are included in Congress's wide-reach power to regulate interstate activity.
I believe A and C are the correct answers
