I would say that A is the correct answer.
Implied powers are political powers granted to the United States government that aren't explicitly stated in the Constitution. They're implied to be granted because similar powers have set a precedent. These implied powers are necessary for the function of any given governing body.
If you look at all the answers, the second one is the only one that makes sense because it deals with land :)
Many emperors disallowed foreign trade
like legit ikr but i think its trump
its always trumps fault ngl bro