Strongest Reducing Agent Identification

The standard reduction potential at 298 K for the following half cell reactions are given below :
Zn²⁺_(aq) + 2e⁻ → Zn_(s); E° = - 0.762 V
Cr³⁺_(aq) + 3e⁻ → Cr_(s); E° = -0 .740V
2H⁺_(aq) + 2e⁻ → H₂_(g); E° = 0.0 V
Fe³⁺_(aq) + e⁻ → Fe²⁺_(aq);E° = 0.77 V
Which is the strongest reducing agent ?

SELECT ONE OPTION