Examine the Following Half-Reactions and Select the Strongest Oxidizing Agent

Examine the following half-reactions and select the strongest oxidizing agent among the substances. [PtCl₄]²⁻(aq) + 2e⁻ ⇄ Pt(s) + 4Cl⁻(aq) E° = 0.755 V
RuO₄(s) + 8H⁺(aq) + 8e⁻ ⇄ Ru(s) + 4H₂O(l) E° = 1.038 V
FeO₄²⁻(aq) + 8H⁺(aq) + 3e⁻ ⇄ Fe³⁺(aq) + 4H₂O(l) E° = 2.07 V
H₄XeO₆(aq) + 2H⁺(aq) + 2e⁻ ⇄ XeO₃(aq) + 3H₂O(l) E° = 2.42 V

A) [PtCl ₄] ^2-( aq)
B) RuO ₄( s)
C) HFeO ₄⁻ ( aq)
D) H ₄X _eO ₆( aq)
E) Cl ⁻( aq)