Help with science homework please!!?

Which of these statements about electrical circuits are most likely to be true.

a) The mobile electrons in the metal wires always move in one direction, whether the switch is open or closed

b) The mobile electrons in the metal wires move towards the positive terminal of the energy source

c) If the switch is open, the electric current will travel from the cell to the switch then stop, as it cannot go any further along the line

I know B is true...are A or C true of false?? And why?

THANK YOU!!