$\mathrm{Pt}\left(\mathrm{s}\right){\mathrm{H}}_2\left(\mathrm{g},1 \mathrm{bar}\right)\left|{\mathrm{H}}^{+}\left(\mathrm{aq},1 \mathrm{M}\right)\right|\left|{\mathrm{Cu}}^{2+}\left(\mathrm{aq},1 \mathrm{M}\right)\right|\mathrm{Cu}$ The measured emf of the cell is 0.34 V means

• A

  ${\mathrm{Cu}}^{2+}$ions get reduced easily than ${\mathrm{H}}^{+}$ ion

• B

  hydrogen ions cannot oxidise Cu

• C

  copper does not dissolve in HCl

• D

  All of the above