Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is red, and C is yellow.

Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is red, and C is yellow. In thereactions in which they participate, they are reduced to A-, B-, and C- ions respectively, all of which are colorless.When a solution of A is mixed with one containing B- ions, the color changes from green to red.Which species is oxidized?Which is reduced?