Chemistry - Chemical Equilibrium Question with Solution | TestHub

For the following three reactions$\text{I,}\text{II}$and$\text{III,}$equilibrium constants are given
1.$\text{CO}\left(\text{g}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)\rightleftharpoons {\text{CO}}_{\text{2}}\left(\text{g}\right)+{\text{H}}_{\text{2}}\left(\text{g}\right);{\text{K}}_{\text{1}}$
2.${\text{CH}}_{\text{4}}\left(\text{g}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)\rightleftharpoons \text{CO}\left(\text{g}\right)+{\text{3H}}_{\text{2}}\left(\text{g}\right); {\text{K}}_{\text{2}}$
3.${\text{CH}}_{\text{4}}\left(\text{g}\right)+\text{2}{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)\rightleftharpoons {\text{CO}}_{\text{2}}\left(\text{g}\right)+\text{4}{\text{H}}_{\text{2}}\left(\text{g}\right); {\text{K}}_{\text{3}}$
Which of the following relations is correct?