Consider a galvanic cell that uses the standard hydrogen electrode (SHE). Which of the following are true statements about the nature of the SHE in this context? (select all that apply) Select all that apply: A. The SHE is always the cathode.
B. The SHE is always the anode
C. The SHE is where oxidation occurs.
D. The SHE is where reduction occurs.
E. The SHE can be either the cathode or the anode.