" Q1).Why should curd and sour substances not be kept in brass and copper vessels "

Why should curd and sour substance not be kept in brass and copper vessels?

Why do curd and sour substances not be kept in copper vessels ?

Assertion (A) : Pickles and sour substances are not stored in brass and copper vessels. Reason: Acids reacts with metals. A) 'A' and 'R' are correct. R is a correct reason for A. B) 'A' and 'R' are correct. R is not a correct reason for A. C) 'A' is correct, but 'R' is wrong. D) 'A' is wrong, but 'R' is correct.