What is true about the following equation ?

$3\text{Fe}\left(\text{s}\right)+4{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)\to {\text{Fe}}_{\text{3}}{\text{O}}_{\text{4}}\left(\text{s}\right)+4{\text{H}}_{\text{2}}\left(\text{g}\right)$

i) Iron metal is being oxidised             ii) Water is being reduced

iii) Water is acting as reducing agent  iv) Water is acting as oxidising agent