Which of the following reactions is a part of the large scale industrial preparation of nitric acid?

$\displaystyle \mathrm{Cu}\left(\mathrm{NO}_3\right)_2+2 \mathrm{NO}_2+2 \mathrm{H}_2 \mathrm{O} \xrightarrow[500 \mathrm{~K}, 9 \text { bar }]{\mathrm{Pt}} 4 \mathrm{HNO}_3+\mathrm{Cu}$

$\displaystyle \mathrm{NaNO}_3+\mathrm{H}_2 \mathrm{SO}_4 \xrightarrow[500 \mathrm{~K}, 9 \text { bar }]{\mathrm{Pt}} \mathrm{NaHSO}_4+\mathrm{HNO}_3$

$\displaystyle 4 \mathrm{NH}_3+5 \mathrm{O}_2$ (from air) $\displaystyle \xrightarrow[500 \mathrm{~K}, 9 \text { bar }]{\mathrm{Pt}} 4 \mathrm{NO}+6 \mathrm{H}_2 \mathrm{O}$

$\displaystyle 4 \mathrm{HPO}_3+2 \mathrm{~N}_2 \mathrm{O}_5 \xrightarrow[500 \mathrm{~K}, 9 \text { bar }]{\mathrm{Pt}} 4 \mathrm{HNO}_3+\mathrm{P}_4 \mathrm{O}_{10}$