Which among the following statement(s) is (are) true? Exposure of silver chloride to sunlight for a long duration turns it grey due to
(i) the formation of silver by decomposition of silver chloride
(ii) sublimation of silver chloride
(iii) decomposition of chlorine gas from silver chloride
(iv) oxidation of silver chloride
(A) (i) only (B) (i) and (iii)
(C) (ii) and (iii) (D) (iv) only
