A solution contains 0.05 M each of NaCl and Na₂CrO₄. Solid AgNO₃ is gradually added to it. Ksp (AgCl) = 1.7 x 10⁻¹⁰ and Ksp (AgCrO₄) = 1.9 x 10⁻12. Which of the following would occur?
a) Precipitation of AgCl only
b) Precipitation of AgCrO₄ only
c) Precipitation of both AgCl and AgCrO₄
d) No precipitation