6. The following reactions are spontaneous and thus proceed to the right, as written: 2H+ + Cd(s) H2 + Cd2+ 2Ag+ + H2(g) 2Ag(s) + 2H+ Cd2+ + Zn(s) Cd(s) + Zn2+ What can we deduce regarding the strengths of H+ , Ag+ , Cd2+, and Zn2+ as oxidizing agents? (A)Ag+ > H+ > Cd2+ > Zn2+ (B) Cd2+ > Zn2+ > Ag+ > H+ (C) Zn2+ > Cd2+ > H+ > Ag+ (D) Zn2+ > Cd2+ > Ag+ > H+ (E) None of the above