$\mathrm{M}+\mathrm{NaCN}+{\mathrm{O}}_2+{\mathrm{H}}_2\mathrm{O}⟶\mathrm{Na}\left[\mathrm{M}(\mathrm{CN}{)}_2\right]+\mathrm{NaOH}$

Which of the following elements gets dissolved in same manner in $\mathrm{NaCN}$ solution?

The following reaction is observed for silver and when it gets dissolved in same manner in $\mathrm{NaCN}$solution.

$Ag+NaCN+O_2+H_{2}O⟶Na\left[Ag\right(CN{)}_2]+NaOH$

$Au+NaCN+O_2+H_{2}O⟶Na\left[Au\right(CN{)}_2]+NaOH$

Hence, option A, and C are correct.