Which Direction Do the Photo-Ejected Electrons in a Photovoltaic Cell

Which direction do the photo-ejected electrons in a photovoltaic cell travel?

A) from the n-type, through a wire, to the p-type, and then back across the junction to the n-type silicon
B) from the p-type, through a wire, to the n-type, and then back across the junction to the p-type silicon
C) from the n-type, across the junction, into the p-type silicon
D) from the p-type, across the junction, into the n-type silicon
E) none of the above