Dilute $H_2SO_4$ and dilute $HCl$ in the presence of air react with

Question

$\begin {array} {1 1} (A)\;\text{copper only} \\ (B)\;\text{both copper and silver and not gold} \\ (C)\;\text{all the three coinage metals} \\ (D)\;\text{none of the three coinage metals} \end {array}$