What is the best explanation of electric current in a wire?

Hello. This question is incomplete. The full question is:

"What is the best explanation of electric current in a wire? A. Electrons build up in the wire and create a charge. B. Protons are pushed along by electric forces. C.Atoms move because of heat. D. Electrons flow because of electrical attraction and repulsion. "

D. Electrons flow because of electrical attraction and repulsion.

Explanation:

Electrical and electronic devices found in homes need electrical energy for their operation. Such energy is obtained when they are plugged into some source of energy, such as a battery or an outlet. When this is done, something invisible happens. Free electrons, which are found in the conducting means of these devices, start to move in an orderly manner, transporting the electrical energy necessary for their operation. This orderly movement of electrons is known as electrical current. When electrical current is dissipated through a wire, electrons flow because of electrical attraction and repulsion.

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.