Which of the following statements are correct?

A. A redox reaction is takes place if copper rod is dipped in zinc sulphate solution.
B. In Daniell cell, the electricity from solution in one beaker to solution in the other beaker flows by the migration of ions through the salt bridge.
C. In Daniell cell, the salt-bridge containing a solution of potassium chloride or ammonium nitrate usually solidified by cooling with agar-agar.
D. By convention, the standard electrode potential of hydrogen electrode is 0.00 volts.
E. The electrode potential value for each electrode process is a measure of the relative tendency of the active species in the process to remain in the oxidised/reduced form.
Choose the correct answer from the options given below.