<em>Expressed Powers</em> are those "<em>Special Powers</em>" given to Congress, specifically named in the Constitution, which are also called <em>delegated powers</em> or <em>enumerated powers</em>.
They give Congress the authority to issue policies on the subjects of war and peace; including the power to control commerce, currency and taxes, to borrow money, declare war, command and conduct the army and the navy; they also include power to manage commerce and treaties with other nations and among the states. Thereby (A).
I am not sure which situation you are referring to, but the role of a senator tends to be larger than that of a representative, which might be why it takes longer to elect a senator.
