Which compound will produce an aqueous solution which has a pH greater than 7?

A.     \({\text{CuS}}{{\text{O}}_{\text{4}}}\)

B.     \({\text{FeC}}{{\text{l}}_{\text{3}}}\)

C.     \({\text{N}}{{\text{a}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\)

D.     \({\text{N}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{O}}_{\text{3}}}\)

C