Answer:
D..Talampakan ...........
The reason that printing currency is a delegated power is because, our Nation needs to be able to trade among itself. If two states had different types of currency from one another it would make trade and travel between the states much more difficult as money from FL and NY would likely be different and likewise useless in each of the other states.
The demand for it is what makes it valuable
The correct answer is inferior courts.
The US Constitution gives Congress the ability to create inferior courts as a means to provide federal rulings on issues between different states without having to go through the Supreme Court. Considering the size of the nation, lower federal courts are needed in order to effectively addresss all of the legal problems within the United States. Just having the Supreme Court would be extremely ineffective, as they can only hear so many cases in a year.