Which One of the Following Statements About Electrochemical Cells Is

Which one of the following statements about electrochemical cells is correct?

A) In a salt bridge,current is carried by cations moving toward the anode,and anions toward the cathode.
B) In the external wire,electrons travel from cathode to anode.
C) The anode of a voltaic cell is labeled minus (-) .
D) Oxidation occurs at the cathode,in an electrolytic cell.
E) None of these statements is correct.