A and B every time because if the machine "predicts" you take both, you get 1kk usd, if the machine "predicts" you take only B, you get 1.1kkk usd. It's a free million dollars at least. Buy a house and invest the rest.
There are various trade agreements and partnerships between the EU and US, some of which are more beneficial to one or the other. It’s very common for countries to do this kind of thing to each other, but it’s usually a quid pro quo situation.